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.
It’s an article in the The Atlantic, not a formal proof.
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...