An aircraft with handling qualities which make it unlikely to recover a stall isn't suitable for passenger transport.
Part of the AF447 crew problem that night must have been stall recognition. The flying qualities in the stall were too much like normal flight. Should that be a certification issue?
What about the "stall stall stall" warning you say? Unfortunately that occurred in a context where its validity was called into question. That is why AOA indicators could have helped.
I have flown with and without AOA indicators. They don't replace airmanship and flying skills.
Did you use your AOA as you flew, or did you consider it redundant?
When the airspeed packs up and anytime you are flying slowly, it can tell you quite a lot about your aircraft's performance potential.
Were your airmanship and flying skills as good at 0200 in the morning as they were at 1000 in the morning? If you had been in one of the front office seats in AF447 when the airspeed went South, are you certain it would have been a non-event for you?