[TheWorstPlayer]

Doesnt matter what comes on the turn, you are obviously committing yourself by raising the flop. But the point is to make sure you keep in hands that are drawing near dead even at the expense of potentially letting someone in somewhat cheaply with a draw. By raising small, you are betting that either someone doesn't have the flush draw, or if they do, this time will be one of the 3/4 of the time that it doesn't hit on the turn. In exchange for that, you make it more likely to keep made hands in that you for sure want to stay in. Pushing here is a big raise. There is a good chance weaker made hands will fold. It is not worth taking that risk to protect against a draw three handed.