Couldn't hurt. Honestly I don't see any good trade options that could net an equitable return, so I hope they don't do it unless they can get a package made for a top 2 D man that is being held back due to depth. Wishful thinking.
I also think that since the Wings D basically drove Gallagher towards the net and Gallagher was clearly trying to stop, it's not his fault that he hit Mrazek. And the puck was sliding it regardless. I'm ok with that being a goal.