But wouldn't this view tend to take the teeth and terror out of hell? It is precisely the horrors of hell that helps to motivate the sinner to convert and avoid the tortures of hell. Actually I tend to agree with all of this you have written and it makes sense but is it up to us to preach it?
Indeed, there's a pastoral consideration here. There's some material from St. Alphonsus that's downright terrifying, but St. Alphonsus played both "good cop" and "bad cop". So, for instance, he'd tell terrifying stories of people who committed just one mortal sin in a moment of weakness and were immediately dragged down to hell. On the other hand, he'd say that he didn't believe that anyone who simply said the Three Hail Marys each day would ever be lost, saying that God asks so little of us and is trying to find any chance He can to save souls. I believe he intended to scare the lax. But I don't believe that God is just waiting behind every bush for people to "slip up just once" so He can pounce, should "ah, I got you," and send them to Hell. It almost approaches a very poor representation of God, but St. Alphonsus' intent is clear, to scare people straight.
There are two aspects to salvation, the supernatural and the natural. Supernatural life is a free gift that no one can merit. In fact, it is beyond our natural capacity. This is why St. Thomas teaches that infants can enjoy a perfect natural happiness and don't even know what it is that they've lost and do not sense any privation of good, because the supernatural life is not essential to complete fulfillment of our created natures.
But on the natural level is where the "temporal" punishments of Hell come in, i.e. the actual suffering part, the flames, etc. And even these are essentially self-inflicted. When a person dies in a state of being on a trajectory against God, they are actually working against that which fulfills their nature and makes them happy. So when they come to know the truth, it becomes a torment for them. I always use the following analogy. One individual loves going to Mass and praying, enjoys Gregorian chant, and then perhaps also classical music. Another individual hates going to Mass, hates chant, and can't stand the sound of classical music, but just wants to party, listen to rock music, and enjoy carnal pleasures. When both of these individuals die, the state in which they find themselves is similar to the former state, and so the soul who became accustomed to the latter experiences torment. But the cause of the torment is of their own making. Because they didn't condition themselves to enjoy the beauty and the goodness that is God, the presence of God causes them extreme torment. So, for one of these worldlings, the thought of an eternity in the presence of God (likened to the sensibilities of the individual who enjoyed Mass, prayer, chant, etc.) is itself a torment.
I'm going to be honest. I've always found the general depiction of God when the torments of Hell are described to be completely incompatible with a God who is love. Our Lord taught us to have compassion for the sufferings of others. Saints were motivated by the virtue instilled by God to care for the sick, to help the suffering, to show kindness, etc. Can we imagine a saint enjoying the thought of torturing some individual with hot irons? There's IMO a poor caricature of God in the conception that God somehow actively tortures people, and He enjoys inflicting suffering. If we saw a human being who enjoyed torturing people, we would consider him a sick, evil, perverted individual. And yet we project this conception onto God and think it's good and compatible with an all-loving and all-merciful God? Something there doesn't add up. No, I hold that the torments souls suffer in Hell in eternity are of their own making ... because God had given them so much capacity for good that the deprivation of that good is what causes their suffering, and the suffering is of their own making. So the greater capacity we have for happiness, the greater suffering is caused by the privation of those things which make us happy.
I forget which saint or mystic it was, but she was shown Hell. So this saint had compassion upon the souls suffering in Hell. [Again, this saint has compassion and yet we imagine that God does not? This virtue of compassion is inspired by God Himself.] At any rate, the saint asked God to take a soul from Hell and put it in Heaven. God did so (not that such a soul could enter Heaven in the sense of the Beatific vision, but most likely this meant going to Limbo). But the soul immediately began blaspheming and cursing, and was in absolute torment and couldn't stand being there. So God said to the saint something along the lines of, "See, they don't want to be in Heaven." So the saint asked God to at least please put him in Purgatory. So God did that. This soul then immediately began cursing and blaspheming again, complaining that it was neither here nor there, but in between. So finally God gave this soul the choice. You can go wherever you want, your choice. So the soul dove immediately back into the fires of Hell. Moral of the story is that souls go where they want to go, and are there by their own choice. God does not torture them like some sick twisted murderer (like Mao or Stalin, etc.) That does God such a terrible injustice to portray Him like that. No, God created us in His image with such a great capacity for happiness that any privation of that capacity causes extreme suffering ... the same way that any other privation of a due good causes us suffering.
But, to come full circle, people have such hard hearts that, if explained that way, the vast majority of the masses would go to Hell. This fear of Hell, I dare say, has saved more souls than direct love of God. But if you were to try to explain the torments of Hell as above, where it's caused by a privation of the great capacity for good that God has given each soul, in such abstract terms, the masses would all head straight to Hell. Now, this is not to understate the torture that is Hell. It's beyond our wildest imagination, just as the happiness that awaits the saved, or even the souls in Limbo, is beyond our wildest imagination. And the two are flip sides of the same coin. We were created with such a great capacity for happiness that we also have, as a corollary, that much more capacity for suffering, due to a deprivation of that happiness that God intended for us. So Hell truly is a torture, but it's not the same as saying that God is standing there effectively serving as the Torture in Chief.