In any case, it explains why some of those capable of writing no longer see the effort worth the diminishing returns.
If they grow weary of laboring in Our Lord's vineyard, fine. They can cause Him sadness by their lack of trust, laziness, and giving in to discouragement.
But in the end, what you stated above is just an excuse. You can argue it's a humanly understandable one, or a good one, but it's still an excuse. No one is forcing them to quit.Because plenty of Catholics are laboring diligently, with perseverance, just fine with Bishop Williamson up there as the moral head or statesman as you put it.
Bishop Williamson isn't stopping any of us.If people find this or that excuse to stop laboring with Our Lord, or to stop carrying their cross with Him, that is between them and God. I consider it sad and disappointing, but it's their choice. We all have free will.
Some beginners in the spiritual life need milk, while others are ready for baby cereal, and still others are ready for meat. It's difficult to labor without excitement and other motivation-inspiring results -- but again that is how God works to mature us. Google "dark night of the soul".