My problem with that call is two-fold. First, there is no way you can rule a forward progress stop on that play. It was bang-bang-out of bounds. That itself was bogus. Second, if you forgot to signal for a clock stoppage, and the coach is yelling at you from 5 yards away, you think, "Oh, crap! I just blew it!" and you blow your whistle. Then you tell the Ref you blew it and he calls up to the replay official to check the time that's supposed to be on the clock.
Just that simple.
Problem is, the Ref and all the rest of the officals for the game also should have known the clock stops with the first down. NO ONE blew the whistle. Every official let the clock run down with PJ screaming and running around on the field. I heard him in the Upper North! All one had to do was blow the whistle and stop the clock.
You can call tihs just blatant incompetence, or you can call it what it looks like - the ACC is run by a bunch of crooked NC hillbillies who act like they're guarding the family moonshine still.
Either way, it's real bad.