Good point there, Vinnie.
Chris, I don't think playing dirty is acceptable and normal in basketball. It may happen a lot and may not always be seen, but when it is, it's hopefully called correctly. The game must have rules and lines drawn or dangerous and career-ending hits would routinely be made, which they're not.
No this is not hockey or football and definately not rugby, which I believe is a British sport. This is basketball where there are no pads or helmets worn by players. It is simply not comparable to these other sports in terms of physicalness.
I still think this discussion should be more about the putting his leg under Frye as he was coming down. This is dangerous and that's why it's illegal.