I have not watched this entire clip. But I believe there is no way that the mask comes off in one shotgun hit. I simply have never seen that happen in all my time playing. Even if that Tiffany with the shotgun had some trifecta of damage-increasing perks for that one situation. Where is the footage from the beginning of the match? I have played in hundreds of matches where I've had to fight Jason tooth and nail to get the mask off. Most of the time that is not what I'm trying to do though, I'm just trying to survive.
I also notice that you put all of your traps at the shack. This means you didn't put any of them on the phone or cars. So for the first 5-10 minutes of the match, nobody was doing anything to escape.
Personally I just do not agree with the idea that Jason is weak. I guess I am 11 pages too late. But I don't see it having played the game almost since launch. The only possible counselor nerf I see being appropriate is being able to restart repairing until you get easier repair checks. You should have to complete whatever repair it gives you, so you can't cheese by on a low repair character. Maybe there are some other things out there, but I do not see Jason being weak. The notion of Jason hunting is absurd. In general the playerbase on PC is so bad that nothing gets done in most matches. A lot of Jarvis players have no idea what to do. Even when a kill is ready to be performed, there's a good chance of *someone* messing it up.
Many Jason players are so used to counselors running around aimlessly that when two or three people actually do help each other and fight back, the Jason gets mad and claims they are overpowered or cheating.