Of course I read the article. See the paragraph beginning: "Really, the biggest reason for a goalie to get off his knees is that if he doesn’t, people might notice.", and the two paragraphs preceding it.
In no way does he argue that the goalie should always be on his knees. He says it’s common for some to be, then explores the reasons why that might be the case. That is called good, nuanced writing.
It’s an article in the The Atlantic, not a formal proof.
He says he noticed while watching Vasilevskiy that after having dropped he did not immediately spring back up as his team carried the puck out, but eventually did before the other team regained control -- "but he didn’t really need to", because Dryden, wrongly, thinks that when the team returns to the zone Vasilevskiy should face them from his knees.
Every NHL goalie plays much of the game on their knees, as they should, because they end up there in response to low shots and close-approaching shooters. What Dryden is wrong to imply is that they should adopt this as their default posture.
As I reread I see that even worse, he downplays the danger of adopting this position leading to taking a slap shot to the helmet, saying a modern goalie mask protects the head "as much as a catching glove does the hand". Just utterly false. https://www.tsn.ca/nhl-concerned-by-rise-in-goalie-concussio...
I’m sure that Vasilevskiy didn’t pop up immediately there because he was exhausted. If his team turns it over, he’s back on his feet in an instant. No way he stays on his knees the whole game
It’s an article in the The Atlantic, not a formal proof.