I agree to an extent. Though Dudley himself says that he plays a little dirty. There's a couple articles where he even talks about hitting players here or there to disrupt their shots or rhythm. I know it's all a part of defense at the NBA level, but lets not crown him a saint. He's just dirty enough to get the job done thankfully, and Bown he is not. He's just not a boy scout either.
Big difference between those tactics and putting your foot under a guy's foot so he comes down wrong.