Marshawn might have a legit anxiety issue.
And demanding that someone put themselves in that kind of spotlight when they have that issue is ridiculous.
Of course, to understand where some of his frustration with being in the spotlight might occur just go back and look at the interview with him in High School after I believe the championship game. People mocking him on YouTube when the video was up, mocking how he mentioned he "wanted to take his linemen to Sizzler" nevermind that for someone without means even going to Sizzler is a treat. So you are just laughing at someone for being poor and having less options (which is a dick move in my not so humble opinion).
Marshawn also sounds like he is from Oakland. And he immediately gets people putting him in imaginary boxes because of it.
He might just be tired of getting judged for everything from what he sounds like to what he looks like and so maybe he says screw em.
Either way, he hasn't abandoned his community, he has been a great Seahawk and shouldn't have to worry about other distractions when he is there to win the game for us. Better he say nothing and take the fine, since he has seen that if people get answers they don't like they pick you apart and villify you and even with solid answers, they can take them out of context in order to toss you in the box they want to project you as.
He puts up with enough abuse on the field he shouldn't have to put up with other people's crap off it.