Leadsled, my opinion is based on studying Assoc. Dip.Mech Eng at the old QIT. Fast forward to current and trying to help my son pass the old system LAME exams. The course notes for engines and basic exam covered some (not all) of my engineering course. Engines was a good course, answered a lot of questions regarding the inards of big radials that I was always afraid to ask...cam timing, good subject
Passed that easily, same with props.
....hence the statement. I would describe LAME as a technical trade, nothing more.