I think you need to build another scarecrow to argue against.
I've never said that MacKinnon doesn't do the heavy lifting, I've been making the same argument for the last 1.5 years, however your interpretation of what I've said is completely wrong.
MacKinnon's stats away from Makar are still better than Makar's away from MacKinnon, however they're actually worse than the Avalanche average when neither Makar or MacKinnon are on the ice. They have a symbiotic relationship where they both manage to propel the other to being elite, however that relationship doesn't seem to extend to basically any other lines.
View attachment 960482
Comparatively, Hughes makes every single line better. Hughes, when he's out there without Pettersson OR Miller, has Corsi, Fenwick, and expected goal stats around 60%, while the Canucks without any of them on the ice averages closer to 40%.
This means that when Hughes is on the ice with the Canucks 3rd and 4th lines, the Canucks are about as dominant as the Avalanche are when Makar and MacKinnon are on the ice together.
View attachment 960484