There are a lot of edges to the flight envelope.
I liked having the AOA indicator for turns to final and final approach. What I liked about having the AOA was that I could see errors before any other indicators would give the clue...normally before I could feel them in aircraft handling.
It's another indicator that tells me more info that's more meaningful than an ASI.
However, since we conform to the stabilized approach criteria in these big transport jets, I have learned to get along without having the AOA anymore. We're not normally anywhere near the edge of the envelope.