[UmpireErnie]

We have no NCAA ball here.. so I was thinking this was something written differently in their rule book since PU clearly states that it was becuase the bat was still moving. Interestingly enough, the PU initially had made a definitive "fair ball" signal when the ball touched the bat. So did she simply not notice that the bat was still moving and got that information from her partners and changed the call based on that new info?

The bat was moving, but it was moving AWAY from the ball. The ball was moving faster and caught up to it. It seems a clear case of "ball hitting the bat" and under ASA and NFHS rules I would have gone with no interference, fair ball, play on. And I would have signalled just at PU did to say "yes, I saw the ball hit the bat..it's a fair ball".