Did you happen to take a look at the teams that the Avs had in their division in 2021? Because I don't know if anyone would accuse the Sharks, Ducks, Kings, or Coyotes of being good hockey teams. MacKinnon just didn't score anywhere near as well as McDavid did, despite playing against some awful teams.
And again, scoring a lot of points on the power play is a good thing. You see how it's a little disingenuous when you take out a big chunk of McDavid's production in his career year, but leave in the production from MacKinnon's career year, right?