I think that's true for multiplayer games, which is understandable because they are more like platforms, even social media, because it has to support a community of people that play with each other.
Single player games will still exist though, and companies will still try to make them online games that can be patched often and have online stores (latest assassin's creed does this), but we should all agree this is no longer the same product. If a single player game becomes a service, it is no longer about a self-contained experience that exists like a movie or book. I guess here is where consumers need to demand that certain game genres be treated as art, and as such be sold like products instead of services.
There's definitely been a shift in what it means to be a multiplayer game. Live service games are crowding out the other forms.
Split-screen, LAN, and even Internet play without fixed servers all existed once upon a time (and still do, to a limited extent). But they aren't what people usually mean when they say "multiplayer" anymore. However, they all have the advantage of staying playable basically forever, with the only real limitation being the ability to emulate older tech.
Single player games will still exist though, and companies will still try to make them online games that can be patched often and have online stores (latest assassin's creed does this), but we should all agree this is no longer the same product. If a single player game becomes a service, it is no longer about a self-contained experience that exists like a movie or book. I guess here is where consumers need to demand that certain game genres be treated as art, and as such be sold like products instead of services.