Please prove both me and Skip wrong.
Rivers was 17 of 31 (54.8 completion percentage) for 207 yards with 2 TDs and 3 ints. for a 57.5 rating. Thankfully, Prescott hasn't had a game like that this season. But ...
Last year, against Seattle during the regular season, he was 19 of 34 (55.9) for 168 yards, 1 TD and 2 ints. for a 54.5 rating. A few games later against Houston, he was 18 of 29 (62.1) for 208 yards, 1 TD and 2 ints. for a 66.5 rating. In 2017, he actually had a game, big loss to Philly, where he had a 30.4 rating ... and he had two more that year in the 50s.
Skip Bayless is a reactionary who is rarely right. Those type of games happen to every quarterback. Brady had one in 2018 (48.3) and 2017 (59.5) just for comparison's sake.