I think Atlanta was more frustrated they could not stop NO than anything. Sure they were embarrassed, but deep down, they know this wasn't a typical run up the score move. They knew he wanted to break the record last night in front of the home crowd.
I do agree; however, that this will provide Atlanta with extra motivation and I think Atlanta would be a very strong play if this matchup occurs (which I think it will).
7 pts or more dogs are 12-12 in Wildcard since 1978, and teams that won first two matchups will mostly win again in the third meeting. But Falcons will have extra motivation after that 45-16 loss.