I genuinely don’t think that Microsoft care much about the Metascore. What they care about is how much people it’ll bring to Gamepass, and it’ll probably be one of the best games they ever released in that regard.
The Metascore for these type of games doesn’t mean much unless they’re really awful. It’s like we see everytime with Ubisoft and games like AC Valhalla that generated more than 1 billion $ in revenue despite a 83 Metascore : the general public still love the Bethesda formula and I think a lot of people will be talking about the game in the next few weeks. BG3 is the critical RPG darling of the year, but I’m sure Starfield will appeal a lot more to the general public.
It's not so much the overall score but where the lower scores are coming from. A 7/10 just from IGN alone has likely cost them millions.