True, if multiplayer shooter developers want to be takes seriously they have to move away from the games as a service model. Quake III wasn't some forever game, it was complete product. If the players wanted more they had to make mods, it wasn't Id's problem.
There will always be less demand for multiplayer games since they are supposed to be played indefinitely, but deliveservicification of multiplayer FPS will allow for niche games with small but dedicated playerbases and restore game ownership to the multiplayer community.
With how much YouTube a lot of people watch the money they for is reasonable at the moment, but you give them an inch and they'll take a mile. If subscribing to YouTube gets fully normalized than they'll add even more expensive tiers, increase the prices in general, re-introduce ads into higher tiers and paywall the entire platform altogether. I wouldn't go anywhere near that platform for this reason.