I don't think this is a problem.

Channels to get visibility exist.

People can mostly choose what kind of news they want to subscribe to and where. They will seek these things out or they will mute them, respectively.

If people want to join the community, finding the discord server is not an actual issue in practice. You can very much still put a link into the game or the demo.

I'm certainly not subscribing to a channel on a 3rd party program to get spammed with marketing every 2 weeks.