Phil, just fucking do it already. The point of the Xbox One X should be to play all the best versions of games, and that means having the game available on the system in the first place. Literally dozens of exclusives on other consoles are only exclusive because Xbox doesn't get them by default. If I was Phil, I'd keep following the mantra if GaaS for Xbox One (since MS does it better than competitors), BUT I would also have a third party team available for getting every and all games available on Xbox, even if only digitally to start.
Start out with only digital versions of games if they're too niche to get a disk version, let the audience and user base build up. Send teams to help port games that already have a Windows version; look at what small MS teams can do with complicated PC games like PUBG and PoE, you're telling me you can't get a quick port of NieR done and test the waters? A game that had it's predecessor out on Xbox 360? Comparing sales to Japanese consoles with established fanbases is irrelevant. Do it like Steam did. According to Streamspy, some JRPG games sell abysmally, but nonstop support, ports and games have the Steam base buying more and more Japanese games.
Some of the anime and jrpg Clubs on Xbox have followers/members in the hundred thousands. Dark Souls has a MASSIVE Xbox fanbase. I mean, theres an audience there. Your console isn't that popular in the eastern part of the world, and it's up to you to fix that.