I agree to an extent, but the game was probably not judged on the advances to it's engine and performance alone. It may have released on another platform already, but it's still by all accounts an incredible game.
Comparisons with GTAV (particularly if they launched not far apart) would likely have been made by reviewers, and it's score would perhaps not have been as high, but a few points difference on Metacritic is unlikely to sway public opinion massively. The difference between a bundle with two "10-rated games" or one with a "10 and a 9.5" is probably largely irrelevant, they're still two very highly rated games with great word of mouth.








