None of those players are Tom Brady. Brady is arguably the GOAT of GOATs across all sports. The football argument is over, probably forever.
Aside from that, I said the impression. I'll argue it to be true until we're all blue in the face but you and I agreed to disagree on the point. So all I can say to you is while you call it a "lazy narrative", it's just a fact that the general impression of Belichick as the GOAT head coach has been tarnished with the outcome of the 2020 season. Are you denying the impression exists?
It's not because he had "good players." It's because he had the single best player ever. And he's had 8 seasons without Brady and he did nothing with all 8.
I think part of what you're getting at is if Belichick isn't the GOAT of head coaching then who is? To that specific question I don't have an automatic reply. On paper alone, it's Belichick, because of the titles, even though he had the GOAT. We know what Belichick looks like without Brady for 8 seasons... an average head coach at best. We don't know what Belichick would have looked like with a different quarterback for those 18 seasons he had Brady but we can speculate. Same with Brady without Belichick for those 18 seasons.
But we now know Brady can win a Super Bowl with an average head coach. Do with that what you will but I'm considering it supportive evidence of the narrative that 1) Brady was more important than Belichick, 2) Belichick's legacy is tarnished until he's able to provide evidence to the contrary, and 3) if he never changes #2 then it's fair to say he was an average head coach.