I understand what you said in your first post about anticipating the psychotrigger. I started doing that too, and it basically caused me to have a conscious release, which sort of defeats the whole purpose of a psychotrigger. So I retrained myself to have a surprise release without using a psychotrigger. A psychotrigger is fine, but most of the world's great archers, past and present, didn't or don't use one.
As far as native archers are concerned, I think the ones we hear about or see on videos are the successful ones. There might be unsuccessful ones that have target panic or any of the other usual reasons for being an unsuccessful hunter, but we don't hear about those. As they say in the old joke: "What do they call an unsuccessful hunter? A vegetarian."