Good question, I would like to know the same myself as to why...
To add another question (sorry), the FI article about upset recovery training in a jet transport got me thinking, are there any good resources on unusual attitude recovery in large jets. This is an area I have had zero training on(certainly in the sim) since becoming an airline pilot both with a European flag carrier and a UK major, perhaps I slipped through the cracks or perhaps none was in the syllabus. I doubt light aircraft techniques transfer over that well to large jets.
My personal plan at altitude was to roll to the nearest horizon using no rudder then pitch to 2.5 degrees and thrust as required.
Cheers