I would say that fans who may be over 40 and whine this much after their team that consists of 18-23 year olds goes 13-2 could be defined as whiny old bitches.
I think it can be a classic hedge because they wrap up so much personal identity with the success/failure of the team. Keep saying we suck and will never be championship caliber, so when we get eliminated, they can be correct/told us so/etc. If we end up being the one team in the nation that wins a NC, they are happy anyway, so who cares?
Then, add internet spats into the mix (super healthy and stable