You are right. I just replayed it and it was clearly on side. Looked like it could have been a good goal opportunity.
Yes that was pretty sad. Talking about the offside called against the Capitals in which they would've at least had a very advantageous 2 on 1 with about 8 minutes left in the second.
It didn't look offside at full speed, so I rewound and paused it, right where the puck was all the way across the blue line plus maybe a foot or so, while Johansson's back skate was at least a foot or so completely behind the blue line. That was one of the worst offside calls I can remember, just in terms of how wrong it was, but when you take what it cost the Capitals into account, it makes me want to vomit.