I've rolled my eyes at some of Mess' takes but I do agree that goaltending is what will decide if Toronto advances or not, at least more than anything else.
I think Samsonov has earned his shot. Campbell had decent numbers last year but few of us were confident going into the playoffs with his poor numbers from December onwards. The game 6 OT goals he gave up versus Montreal and then Tampa were abysmal.
That doesn't mean others don't share the blame. The teams leaders / stars need to rise up in a big moment (elimination game) and find a way to win. The depth needs to score when the top guys are being shut down, and the special teams needs to stay hot and stop turning to shit.
I'm not sure the numbers support this, but I think Samsonov has provided the steadiest goaltending the team has had since Andersen's second last year. I know his post season numbers aren't great, but I have confidence in him - at least for this year.