If you are say at 100kts, or Va for your weight for safety sake, and suddenly yank back on the yoke
I hope you are doing this in something rented
If I have to demo this for my CPL in the TB I will just refuse. Chandelles and lazy eights are as far as I am going. This is despite knowing that a TB20 is much stronger than a PA28; no known in-flight structural failure ever.
You are right about the 45 deg airflow. I can't get my head around all this right now; you may well be right. I think there is a difference between transient and longer term conditions though. The stick, for example, has no effect on the wing AoA - it's only through the action of the elevator, and relatively much later on through a pitch change, that the wing AoA changes.