Home feed is only chronological, so you need be careful about who you follow. I.e. if you follow someone that posts important stuff, but only weekly, it will get drowned out by following people that post every hour.

You can create Lists. They are essentially different Home Feeds. You can add any account you follow to any list. There is also a "Hide these posts from home" setting for each list, so if you have a certain account you want to follow but don't want in your Home Feed (eg. it posts too often), you can put it in it's own List and exclude it's posts from the Home Feed.

Journalists are just going to go where the most people are because it’s their job to self-promote.

Then they should go to as many places as possibe. It's a shame that there isn't more included by/like press.coop. And easier tools to post to multiple platforms at the same time.