Not everyone who plays MMOs are active participants. Majority of people in a guild are not active participants. A lot of them won't even get on a shared voice call anymore to listen to instructions during large group events.

A lot of MMOs also make active collaboration a complete pain, whether it's introducing a messed up matchmaking system, not dealing with bots, or adding new content that rewards you for going at it alone. A lot of content now is quite literally zero communication, not even a message in chat, just queue for group, do content and leave.

And people will spend 5+ hours a day doing that. Farming mindlessly as if it's a second job.