Video here:
The official was holding the action because Boston College was substituting, and Winston shoves him.
The official looked awkwardly out of place with the additional man crew when normally they stand and hold the ball in front of the Center.
And also, what substitution was BC making when the ref was still holding the ball? Not only did he hold the ball for the substitution to be made, but held it long enough to allow BC to set defensively before Winston could get the play in (up-tempo was called from the sideline). The ref interfered with the play too long and knew he screwed up which is why he didn’t throw a flag, and why the ACC didn’t see anything wrong or flagrant.