I don't know if Dallas does it, but they probably should.
From a psychological standpoint, i kinda get what DeBoer was going for. If the boys don't want to play in front of Oettinger, you yank him to try to send a message to them that if you're not going to show up in front of him, then he's not going to be there to bail you out.
The problem is the context; Oettinger got hung out to dry badly on both goals. Perry on the doorstep for the first one with no one within three feet of him. 2nd one Dallas gets absolutely torched in transition leaving Janmark free and clear to bury one.
You could see it after the second one, Oettinger was pissed just from his body language. Straight up looked like a "where the f*** are my teammates?" vibe. You pull him when he's already pissed which isn't going to make things better. And then because he was going to the locker room to obviously simmer down, you pull that stunt where you rip into him, making an already awkward situation far worse. All it does is send a message that "this is your fault and you're going to own it."
Just let him go to the room to cool the f*** off, you idiot. Completely unprofessional and shows a complete lack of situational awareness.
This isn't even taking account it's the 6th straight conference final DeBoer has lost as a coach too.