First, I'm not sure what being hit by someone who is or isn't half dazed has to do with the severity of his injuries, but the fact is that the ref hasn't worked a game since the hit. So Wideman effectively ended this guys career.
Second, if Wideman really was half dazed, then concussion protocol should have kicked in and he should have gone to the quiet room. But he didn't. So he was either half dazed and the team and the player ignored concussion protocols or they didn't and he was fine. You can't have it both ways. Either way something there isn't right.
Willing to also bet this lawsuit is a result of Wideman and the NHLPA knocking his suspension down to peanuts.
The joke is Wideman effectively ended a guys career then got the PA to cut his suspension down in half. I don't know if that is worth $10M, but they didn't get justice through league discipline, so they've gone to the next route available.