[just another ref]

Originally Posted by OHBBREF

So the alert official should blow the whistel instantly upon the defnder reaching in and call the violation or warning thus avoiding the intentional foul or causing an intentional technical becuase the ball is now dead?

If the defender commits the foul, you call the intentional foul. If the defender breaks the plane, and then the thrower makes contact, I say you call the violation/technical foul.

The other reason to call the foul intentional is that it would not be a basketball play to push a defener out of the way with the arm or ball to gain an advantage to inbound the ball?

This, of course, is a judgment call. I just say that the throw-in has nothing to do with the call in this case. If you call this intentional, it would be a foul that you would call intentional if both players were inbounds.

The above discussion brings the following to mind. Intentional is perhaps not the best name for this type of foul. Intentional usually means "on purpose."
Yet by definition, many actions on the court which are done "on purpose," will never result in an intentional foul call. Conversely, intentional foul is the proper call for some things which were obviously not done "on purpose."