just mentioning that you will very rarely, if ever, be able to single out one moment in one game that wins or loses it for a team, especially when these plays happen with plenty of time on the clock.
single out that blown coverage: well, who's to say that Baltimore would not have turned around and converted on the next play, or the Broncos show up and botch yet another possession within seconds? The course of the game will change on these moments, as they do not exist in a vacuum. And as a team sport, you really have to look at the whole of the game and fault a series of mistakes or bad calls (coaching calls) and failures to adjust.
How about accepting that the losing team simply got outplayed by a superior team that day? Baltimore was clearly the better team that day. There isn't a logical argument for Denver being the better team. I mean, honestly: they would have won, right?