Not true at all. People obsess about one bad call or another, but there are countless “key moments” in a football game that could change the path of causation one way or another, alter the score, and affect the outcome of a game. The score could have been changed before or after the one moment that people tend to obsess about. If you think of a bad or missed call as just “one of the elements” teams and players have to try to make their own luck. Just as a tipped pass or kick can affect the outcome of a game, a gust of wind affecting it (except in the domes ofc), etc.
There are many moments before and after a “bad call” which also could have changed the outcome. Why didn’t the Saints score in overtime? Oh, bc Brees got picked off..... well that “caused” the outcome of the game every bit as much as the bad/missed call.
There were at least nine blatantly missed calls in that game alone - seven of them would have been against the Rams. This by a crew of refs with four from Southern California threatened by petitions in the area to cost them their livelihood because they had been calling against the Rams. The crew, or at least the group of four, is incompetent and should never have been reffing an important game.
This doesn’t even count the calls not made that were purely judgement. The officiating in the league seems to be going in the same direction as the moral character of the majority of the players.