I don’t think San Diego fans are blaming their poor play on the officiating. They’re blaming the outcome of the game on that one call, which you concede, decided the final outcome.

I don’t understand your point that “other plays had a majority of the effect on the total points scored.” You could use that to dismiss the importance of any single play, and you’d be right in a limited sense, but that’s a misleading and inaccurate way of looking at it. It’s a collection of all the plays that determine the outcome. This, however, does not mean that any given play is meaningless. Individual plays do determine the outcomes of games, and there’s no doubt that that call did just that.

The blown call only cost the Chargers the game because of the way they played earlier. True. Any close game is going to have many individual plays that could have determined the outcome. Of course there’s going to be other plays to point to in a game that consists of many plays. The fact that the Chargers could have still won the game if they had defended Eddie Royal on the 2 point conversion doesn’t excuse any of the other individual plays.

 “Why blame the blown call instead of any other play?” I think that’s kind of a silly question. Inaccurate calls should never decide an outcome. This call undoubtedly decided the outcome.

I think what you’re trying to argue is that San Diego didn’t deserve to win, given their poor play. Discussions about which team “deserved” to win are usually pretty worthless: games are measured strictly by how the teams perform on the field. This only works when the measuring is accurate! If the game had been properly officiated, San Diego would have almost certainly won. San Diego would still have played poor defense in a properly officiated game, and you could still question Norv Turner’s abilities, but those are separate problems.

A team deserves to win if it would have won the game if it been refereed accurately.