I see what you're saying, and the STP argument is obvious, but it actually assumes alot.
1. Your opponent has to be playing it
2. Your opponent has to draw it
3. Your opponent has to have mana to play it
4. You're playing into it
It's my opinion, that if you simply try to pick your spots well with Reckless Charge, you'll end up ahead in the long run. Getting an extra attack step in is amazing.

