That isn't really true anymore.
Roles are all interchangeable and a lot of the "traditional" definitions for what a center is and what a winger is don't really apply anymore.
30 years ago, Marner would be a center and Matthews would be a winger. Fast forward to 2023 and its the opposite. They'd both likely be as effective if they were deployed like they would have been in the 90s.
Plus there are more winger spots on a roster than there are C spots. It would be wise to be the strongest where you have more spots to fill. Doesn't mean you can't just line up some dumb schmuck at C and expect to make it work but there are plenty of players who are good enough.
Get as many top 6 worthy guys in your top 9 with a touch of diversity in skill sets amongst your group and you're good to go.
He also plays on a PP with Fox, Zibanejad and Kreider on one of the leagues best units over the last 4 years.
You can't have it both ways.
Plus if hes making THAT kind of money, it shouldn't matter who he's playing with. At that price point he should be the guys brining other players up, not needing the support to be dragged up by his line mates.
Also peep
@Synergy27 's post above. Hes been abysmal in the playoffs, even more so than the guys he has played with.