This is different. Schilling was the team's ace in the first world series win in quite a few years. Then, he did pretty well in the world series win in 2007. He was a high quality pitcher for quite some time, but he ended up hurting himself, and he lost a season, then called it a career.
Mike Lowell was re-signed for a contact valued for 37 million, almost 5 times the guaranteed money Schilling got, and has been a dead weight, and a defensive liability for most of it. Not only that, by hiding his thumb injury, it ruined any chance of trading him and now the team is essentially stuck with two designated hitters. He's a fan favorite, most people still like him, but this situation has drawn out in such an ugly way, and most of us are tired of hearing about it.