I think their fans over there are about as realistic as you can expect any fans to be, to be honest.
One thing every fan base does is criticizes their guys, but forgets that the other team has talented professionals, too. Sometimes, you just get beaten. This is something I've been working on realizing for myself as a fan. Like that second Arizona game - they just beat the crap out of us. Sometimes it happens. I think you see fans talking about adjustments, and a couple will always say IT WAS A FLUKE, but overall, they seem pretty decent about analyzing the loss. At least, they are as decent as any other typical fanbase.