This is internet in a nutshell. TRASHCAT came upon an article that he didn't read because the title implied that a player from his team will be criticized. Based on this, he formed an opinion that the whole Athletic service is junk. People in the comments section agreed and what more proof do you need.
AlexBrovechkin8, who also didn't read the article, quickly formed an opinion that if the article was written by Dom, which it was not, the article is junk and is not worth reading.
Dumb and nobody, who didn't read the article not written by Dom Luszczyszyn, has no idea who this guy Dom is, quickly concluded that Dom is wrong and his model is wrong.
In conclusion, nobody read the article not written by Dom that states that one of Anthony Mantha's most valued traits is his ability to perform on the power play. Namely, he is one of the highest one-timer PP volume shooters in the league, typically manning the right point in a 1-3-1 PP formation. Essentially, he is the Ovechkin, if Ovechkin was a left shot. The article reaches a rather non-controversial conclusion that seen as how Caps' have the top power play in the league, it's highly unlikely that they will randomly decide to flip it on it's head. Anyway, having an Ovechkin on the right side is great in principle but doesn't work worth s**t in reality because you don't have a Backstrom on the left, Carlson cannot dish out perfect one-timer passes on his backhand and the actual Ovechkin plays the whole 2 minutes of every powerplay.
Stands to reason, that Caps might not be able to fully utilize all of Mantha's skillset.