Travelling - or not travelling?

[David Clausi]

Oops - didn't make myself clear.

Here's the scenario again. Player comes out towards the 3point line to receive a pass. Catches ball on one foot (now the pivot) while that foot is within the 3point line. Then places other foot outside the 3point line. What often happens at this point is that the player switches pivot feet ie. the foot outside the 3point line suddenly (and magically!) becomes the pivot foot. By switching pivot feet, the player can threaten a 3point shot. If that player had maintained the true pivot foot, they would not be able to threaten a 3point shot. Hence, this violation has clearly gained an advantage for the ball handler.

We all know this is travelling, however, it is done all the time in NCAA and is replicated at the high school level (check it out in the upcoming Final Four). Sometimes, refs call it as travelling. Often, it is not called.

Why is this violation NOT being called consistently? Should it be called??