Was this preflop push with AK too agressive?

I don't think calling the re-raise preflop is incorrect. You are in position after the flop. If you miss the flop and he bets, then you can throw the hand away and still have 21 big blinds, so you are not in dangerous territory.

I think that, without reads, you have to figure there is a good chance that BB has a pocket pair, in which case you are in a race situation, and I don't know if that is a situation I want to be in preflop at this point in the tournament.