The 2019 St Louis team is why I can never quite get behind shitting on Binnington no matter what he does. He led a team to a Stanley Cup, the pinnacle of all possible achievement in this sport. It rings a bit hollow making fun of him for letting in a couple of bad goals or losing his composure after that.
He just simply displays a poor character and is not someone that you could call a "class act". When you had players like the Sedins to follow all these years to see what class act hockey players are, it really does make the rotten players easier to pick out. If you don't value those things, or if you think a championship negates Binnington's on ice antics, then that's your opinion and free to have.
As for others, I think it's fair to say people see him in a different light, being a douchebag and a whiner with his fake punches and stick swinging.
A goalie's consistency throughout a career is what I always valued. The greats like Luongo, Lundqvist, Price, etc. Binnington had a hot run one season and it took him to the cup. Congrats to him, it doesn't take anything away that he has a championship in his resume, as opposed to the other 3 goalies I just listed. But he also shit the bed the next season. And he's been inconsistent over his short career.
There's just a lot of other goalies in the league that aren't giving as much of a reason to shit on compared to Binny. He just makes it easy and fun.