Yeah, that's a bullshit number. It's like when people provide piracy counts as lost direct sales, a lot of people will download something for free, those same people won't always pay full price if they can't download it for free.
I downloaded a TON of games from Game Pass, played <1hr, and uninstalled. Without GP I would have just never bought the game.
They never had the user base to sustain so many studios making AAA games under a subscription model.