I'm with BWC on this. Mashinter isn't ideal, but he hasn't been a problem either. The Hawks have given quite a few looks to prospects from Rockford, and for the most part none of them did anything to stand out or make me question Mashinter's spot in the lineup. They're also better off playing a bigger role in Rockford than replacing Mashinter's unimportant role with Chicago.
I think this has a lot to do with many Hawks fans looking for things to complain about, and not liking the style of play guys like Mashinter bring. I could care less if he goes back to Rockford, but I don't really care if he plays while other people are out. The Hawks are still in a great position.