I do recall the AF447 aftermath and discussions. My opinion's not changed since then - an AoAI is potentially a valuable, even lifesaving instrument: but only if it has been developed, and pilots trained, with that use in mind.
I believe I am speaking for most jet drivers that very little training is given to fly on the AoA gauge. We did some on the last recurrent sim but it was limited to a few minutes only, VMC condition and I even had a defective indication on my PFD which the instructor didn't seem to bothered about. Wasn't the greatest learning experience.
Pitch + Power is king when you're faced with an unreliable airspeed indicator, imho. It's also something that we subtly get trained at on every flight as we keep our scan going observing a range of reasonable pitch attitudes and power settings for various stages.