I don't think they're anything to write home about, and you're right, Sully saying "we have to make some changes" in the postgame and then not doing it would be dumb and also counterproductive.
But I don't think it's really out of line to criticize the team for not showing any heart or even realization that they need to fix the problems on the ice; I don't even know if they know it's a problem. That's the issue. It's not like it's the one thing that's wrong with this team, it's just merely a symptom of a squad that doesn't have the drive to compete anymore.
I just don't see how you can knock people frustrated with the team. This isn't a 5 game losing streak in the middle of an otherwise good season, like in years previous.