This is nothing new, fans will fan. In Lavell's day they'd call into KSL wondering why they didn't throw more or run up the score more, etc.
Fans were regularly calling for Norm Chow's head - every game. In fact his wife just stopped going to games altogether because it got that bad.
I guess it depends on how bad the nitpicking is...but I get it as a fan especially during the game - it's torture watching the opposition just go down the field converting 3rd and 4th downs and wanting it to stop. It's hard to have perspective while it's happening because fans are fans...and they're going to fan.