You actually haven't even framed how the argument "doesn't make sense." I even provided real examples, such as time-limited games on the service (to increase FOMO and/or encourage purchases on top of sub fees), games designed to be mere fractions of complete titles (Godfall: Challenger Edition on PS+ this month), and additional monetization schemes for reoccuring spending to further increase (see pretty much any first party Microsoft game these days, etc.).
These are real things, happening now. Do you really think $15/month is going to both replace the direct dollar cost purchase of these games and create more annual revenue without something else to encourage more spending? If you don't believe that to happen, it's literally against the basis of a for-profit company.
Thus, revenue and profits must go up. You either decrease costs through further developer exploitation and/or increase revenues from customers. They got exploitation down pretty good these days (you can even
fart in their faces and still
get promoted!), which means these subs and "free stuff" are loss leading market entry tactics that will ratchet up in price later.
And if you think these are "doomsaying," well I guess call me Cassandra. Or perhaps someone who's read a history book or two and studied economics and perhaps knows how this will play out if history is our guide.
Your argument makes sense, too. It just remains short sighted and self-centered; it's "I got mine," and to which I say, yes, that's the perspective Microsoft wants you to have based upon loss leading market entry tactics.
They aren't selling a digital-only Xbox Series S for farts and giggles.
But it's just about "internet arguments" not about an hobby I've had for 30 years being monetized and commodified to death. Can't be that... In the mean time, do you want some Poopisoft NFTs and some WATA-graded sealed games?