I don't think it was close at all
I didn't think it was a close call, but the NFL ones aren't even comparable. Both NFL calls the QB never even threw the ball.
Trust me, I think the GT call was absolutely out of line, but the NFL ones were on another level.
Watching some of those calls, I can’t help but wonder if the refs know what a “passer” is. If the ball hasn’t left the QB’s hands, then he’s a ball carrier, not a passer. Geez!
I looked up the actual rule (NFL) earlier because I was having this discussion with my brother.
When tackling a passer who is in a defenseless posture (e.g., during or just after throwing a pass), a defensive player must not unnecessarily or violently throw him down or land on top of him with all or most of the defender’s weight. Instead, the defensive player must strive to wrap up the passer with the defensive player’s arms and not land on the passer with all or most of his body weight.
Brady was 100% not "during" a pass, and should not have been considered a passer. Carr's arm was moving back, but I think that is pretty weak, plus the defender braced the impact as he landed to make sure not all of his weight landed on the QB. Both of those were egregious beyond reason.
The NCAA rule applicable for our play:
Forcible contact that is avoidable after it is obvious the ball has left the passer’s hand.
Forcibly driving the passer to the ground and landing on the passer with action that punishes the player
There is 0% chance that that was "avoidable". Point of contact is also on the shoulder, removing any helmet to helmet concerns. I don't think the hit and landing warrant the "Forcibly driving the passer to the ground and landing on the passer" portion of the rule, but that might be what they are calling. I am pretty certain if all he does is hit the qb with no wrap up to the ground, they don't call it. I still think that hit is fine, and it is 100% incorrect to call roughing.