Round and round we go, HUD this and AoA that. Yes, AoA is good. Yes HUD is good - I have used both. I am 100% certain that this crew would not even have noticed either since they appear to have not noticed the extreme pitch attitude (x 3), the extreme Altitudes (x3) and the high Rate of climb, nor followed their trained responses. All such observations, of course, subject to the final report, but in essence this AF crew simply could not 'fly' or operate a cockpit correctly.
Giving them AoA or a HUD would, in my opinion, be like giving a monkey an Ipad.