Yeah there is, the better question is why the Oilers insist on making McDavid's life so much harder than it was for Crosby or Ovechkin.
Neither of those guys would win jack shit with the Oilers roster because they would get relatively poor goaltending compared to what they got in their Cup runs.
Even MacKinnon, lets look at his last two years now that he has rosters normalized more in line to what McDavid plays with here (he has Rantanen, Makar, Nichushkin, Toews, Middelstadt is fairly in line with Draisaitl, Hyman, Ekholm, Bouchard, RNH as McDavid's supporting core, fair?).
Lost to Seattle in round 1 (worst team to make the playoffs maybe in the last 5+ years) and then got whupped by Dallas in round 2.
McDavid does way better than that, give him that 22 Avalanche team and he wins the Cup easily too.