Some of the responses here frankly disturb me. With how much is coming out about concussions and how they affect not only physical things like balance and vision, but cognitive things like decision making and mood, you would think Wideman would get more of a benefit of the doubt especially given his clean record before the incident.
His head hits the boards really hard, and he was concussed. You might need to wait for public statements from the doctor who diagnosed him, but I don't. Everything he does from the moment he was impacted to his post-game comments (and possibly until today) were likely to be significantly impacted from the hit he received to the head.
There was a systematic failure by the league and the Flames medical staff to properly assess the hit to Wideman (and the linesman, for that matter, who also stayed in and finished the game).