British Gliding Association (BGA) safety committee member, some experience of gliding accident analysis, current glider pilot and lapsed PPL.
I cannot claim any knowledge of CAT flying, but I do know something about glider flying and gliding training, and also something about gliding accidents and what surviving pilots have said on occasion.
And the reason I followed this from the outset through all threads – when a stressed pilot forms the wrong conclusion, he/she tends to stay with it regardless of ineffective attempts to correct the wrong problem. I have seen this in my field (gliding safety and accident analysis) – only test pilots, or rare individuals, can keep a clear head and systematically fault find.