Spot Throw In Violation - PSU v GM NIT

[CallMeMrRef]

Did anyone catch the NIT game last night and see the violation called with less than a minute left? I was watching in a bar with no sound, but closed caption and could see that the commentators were saying something about the number of steps the thrower took out of bounds as if to say that what happened was a travelling violation.

The referee clearly signalled a line violation for moving, but from the quick replay I saw, it looked like although he may have taken quite a few steps, he actually may have maintained one foot on or over the 3 foot throw in spot - which would not be a violation.

Anybody else see this or have a comment?