Salute infrequent!
O.K., I get it. No offense, and the big beef from pilots is the system doing something that you have not commanded when not in A/P. Fer chrissakes, "manual" should be as much "manual" as possible so you don't have to remember all the sub-modes and special procedures. See the AF447 endless posts.
The shaker is one example of "warning", but it doesn't move a damned thing. The "pusher" on some planes is same-o, same-o. Both are telling you to pay attention to something. I flew with both types of "alerts", and they helped if I was having a bad hair day. I also flew with two planes that had actual aoa/gee limiters, and you could pull all you wanted, but the FLCS ( flight control system) would not let you command more than it wanted, heh heh.
The STS thread over on Tech Log is very interesting, and discusses STS much more than MCAS. So Vess and Concourse are over there contributing on a new thread that goes more toward total pitch trim system(s).
Gums sends...