Yes, apparently this is a common objection. FWIW, my bro-in-law had no problems whatsoever, and he has been trained in traditional drum technique. In any case, here is the designer of Aerodrums with his reply to that objection:
Wow, that seems pretty incredible! I know things aren't usually as good as they appear to be in product demos, but it could be a great solution for recording.
I can confirm that it works as advertised.
Yes Wow, I must admit it looks convincing. Time to try some of my own airplay?