I’m not sure if the implication here is that the Fanbase hated the team, but eventually people wanted Marv fired or Frank Reich to start. Kelly was skewered for his selfish play in SB25. Walt Corey’s defense was hammered year after year for his bend but don’t break philosophy. WGR turned toxic from what I remembered.
But as I mentioned earlier, this isn’t really the same scenario as what was being discussed. They hadn’t won, so a certain amount of complaining would have certainly been expected.