No way to tell what would have happened if the whistle hadn't blown. My real-time reaction at the game was that Danny A had a lot of room to run, but as others have pointed out, Darby reacts to the whistle too.
What I disagree with is the narrative that the officials "lied" or that crediting Amendola with the reception and assessing the penalty against the increasing out-of-control Bills coach was a conscious attempt to rectify the original screw up. The replay/audio does show Amendola caught the ball just after the whistle, but it was very close. Remember - there was no replay. The zebras had to decide what happened based on their recollections alone. Only with the benefit of replay can we see that their judgment was wrong, but to assign to malicious intent to that is an opinion, not a fact.
On the drive home, I made the mistake of listening to Bertrand and DeOssie (the latter of whom is an insufferable, certified card-carrying, knuckle-dragging moron). DeOssie's inflammatory intrepretation was that the officiating crew blatantly "lied" (his word) saying the catch occured before the whistle and that the penalty was another "lie" that the crew arrived at in the interminable conference after the play. What a putz.
The only positive I can see out of the whole situation is that this team continues to be mentally tough and refuses to become unhinged (unlike Rex the Lunatic) when something doesn't go their way.