Personally, I was hoping Kojima could pull of the magical perfect 10's right out of the gate with universal praise. But, none of the review scores will change whether I get the game, especially when games like RDR2 got universal praise, including praise for its story, which boggles my mind. For me, the judgement will come down to how Kojima executes the story and whether the gameplay loop tires itself out before it's all over.
MGSV is such a goddamn joy to play, but it's story is near non-existent. So while it got 90+ MC score, it was bottom tier Kojima to me. I'm far more interested in the story in my games than strictly gameplay. And, game reviewers typically have zero idea how to judge whether a story is good or not. They simply lack the literary and cinematic education in order to properly judge story properly. They typically have zero understanding of themes, subtext, cinematography, or what in general makes minute-to-minute writing good. Thus, I can't really ever take their word seriously whenever they discuss story and have to just judge it for myself.