The minutes:points curve won't be linear, but it's still a positive correlation, undoubtedly.
As for which players might debatably play with worst talent, it would be ingenious to argue this based on this season- as McDavid has played with Draisaitl in the recent past. He's also played with Lucic, and as bad as he may or may not be today (which may have as much to do with contract than his play), was an undisputed (at worst), top 6 caliber forward before Edmonton.
If we're talking based on some historical narrative, we could easily point to Crosby or Tavares, who have both played with guys who have built careers and have never replicated success away from them (guys like Moulson, Colby Armstrong, Dupuis, Okposo, Paranteau). List goes on.