Shooting Foul after a Blocked Shot

[cchar042]

Greetings, I just joined in order to ask this question.

I was watching the Thunder-Knicks game last night and there was a call that I did not agree with at all. Kevin Durant drove to the hoop and attempted to either dunk or lay it in. Kenyon Martin ran to him to defend him, and knocked the ball away from Durant before they made any contact at all. The ref's whistled play dead and called a Flagrant-1 on Martin, which was later downgraded to a Shooting Foul.

Was this the right call? Martin's block was clean, and at the very worst, I feel it should've been a non-shooting foul, as the "foul" had no effect on the shot at all. It appeared to simply be 2 bodies colliding in midair, neither of which had control of the ball.