Indeed.
How many 'bad' teams did Roy, Belfour, Brodeur, and Hasek play on?
Osgood had played well while on the Isles and Blues...Just not any personal hardware unlike others mentioned above.
If you want a large contention window you need both
If you want a one and done run like the 2011 Bruins or 2019 Blues then you can do it with alchemy and a bit of luck.
If I'm going to wait 10 years between playoff appearances there better be a window vs a one-off
No offence, but I think people tell themselves you don't need superstars to win the cup when they're really just trying to cope with not having any.