Gregg - You made several claims in your "bottom line" and I don't want to go be to repetitive by going through each one.
As you know, I'm a strong believer in the importance of verifying the hypotheses.
I think the "bottom line" is that we constantly use common sense to improve our husbandry and that, most of us agree, includes providing privacy, suitable substrate and, I would add, suitable temps for females that are about to lay.
Unfortunately, I believe egg binding might be because of other factors that we haven't uncovered yet.