Call me crazy but I think something that has been overlooked is the possibility that Marshawn Lynch may have a genuine phobia of large crowds or the media process in general. Something akin to a form of stage fright, it isn't as uncommon as one might think.
Seahawks fan or not, I honestly felt bad for the guy as they badgered him on day two, you could tell he was legitimately uncomfortable there and wanted to get away so bad. Then Michael Robinson stepped in and took the questions, making light of it the whole way and easing the tension in the room. you could tell Marshawn genuinely appreciated it as he started dapping him up and laughing. Mrob is good at using the media to communicate his point without being overt (that pic he made marshawn take shows their perspective, something not a lot of us would be comfortable with). This may not trickle down to the field, just wanted to point out a good wingman.