Thankfully there are voices of sanity out there, and one of them is former NFL player Nate Jackson, who is also a pretty good writer. He holds back very few punches in this piece for Deadspin. Here is the glorious closing paragraph to give you just a taste:
Instead, a grown man was provoked into losing his cool and dropping shitbombs all over the airwaves. So now the manufactured perception is that the quarterback not only doesn't give a fuck about his team losing, but that he can't keep his cool either. So let's run his ass out of town because a couple of emotionally stunted football pedants can't relax and laugh it off. Meanwhile, in his second year as head coach of the Tampa Bay Bucs, frequent laugher Raheem Morris has his team playing better than any Gruden-coached team has in years. Now that's funny.The reality is that Anderson could have been laughing for any reason -- my assumption was gallows humor of the "if I did not laugh I'd cry" type. We all want our teams to win games. But it gets awfully tiring to hear fans and talking heads try to insert themselves in the minds of players and accuse them of not taking the games -- and thus their livelihoods and reputations -- seriously enough. Derek Anderson may or may not suck ("suck" being a relative term, of course -- empirically he is better at his job than you are at yours unless you too are in the top 30 in your field in the country, and if you are reading dcat almost by definition you are not) but if he sucks it has literally nothing to do with whether he is "serious" enough during games.
UPDATE: Charles Pierce's take is equally worth reading.