People are hardly treating him like sh#t. That's reserved for Niles Paul and Shawn Watson, Nebraska's two favorite scapegoats. (I'm kidding, but sadly it's true.)
Everyone agrees that Martinez is a hell of a talent. He's our best player and he's still a huge work in progress. But at some point, you have to question if the drama he brings to the team is worth it. Right now it is, especially since there's no source to back up these rumors. However, if he's truly quit the team for a second time, then you have to question his character, or at least those close to him (his father?).