Genghis your points are very well made as usual and we have to respect your engineering and flying credentials. In the airline world backed up by manufacturers advice we always teach in a nose low recovery scenario to roll the wings level prior to pitching. The thrust issue is semi optional dependant on aircraft type etc. I don’t know of any instructors who teach differently. However to reinforce that everyday is a school day I was asked to describe rolling g in my FI renewal last year. To my eternal shame I was not even aware of such a thing after 47 years flying, mainly airliners. The examiner, bless him, took the opportunity to educate rather than berate my lack of knowledge.