The importance of the "TLM Trailblazers" (i.e. ABL, Bishop De Castro Meyer, Fr Wathen, Fr DePauw, among many, many others) is that they guided catholics through the murky waters of Vatican II, which was very new and very confusing.
But now, 50 years post-VII, it just seems that too many adult catholics haven't "grown up" and have not started to think for themselves. Yes, ABL is still important/relevent (as well as the rest of the "trailblazers") but not in the same way they used to be.
The crisis in the church has NOT changed, but the strategy needs to change, because the enemy has changed tactics. The indult of the 80s changed the game and now the motu proprio has further changed the game. In the 70s/80s Rome was trying to destroy/replace the TLM; now, realizing it won't be destroyed or replaced, they are trying to modify/cheapen it by putting it on the same level as the N.O.
I think it's a waste of time trying to dig up old quotes by ABL or whomever and try to fit their "thoughts" to the current situation. In a general sense, what ABL said 20 years ago still applies, but specifically, it does not. So, arguing about what ABL "might have said" today is a waste of time.
We all have 50 years of evidence to see the effects of VII and the N.O. We should all have enough knowlege to make judgements without consistently going back to 20 year old qutoes to support our stand against modernism. Those who are inching closer and closer to Rome (and it seems this number grows by the day) should be called out and rebuked but we don't need an ABL quote as authority to correct them; we can use our own words, our own evidence, our own mouths to speak! We all have just as much a call to defend the Faith as any of the "trailblazers". And it's time that more people speak up, or else all the hard work of the last 50 years is going to be lost.