> Journalists should be akin to scientists and researcher: specialized in their field

That would require them to actually have studied that field in university in a masters degree (or PhD) like researchers have.

Very few journalists have. Some journalists are good, many are talking heads.

Have you studied a master degree in every field you read casual information about? For hard science matters, sure, they should, or at very least be very connected to the field to have a very good understanding of it, critical thinking to smell out the bullshit revolutionary researches and a network of actual PhDs working on the field every day that can help them getting to the core of the topic. Apply the same concept to all the other fields, even the not hard science ones, and you may end up with a web of news and information outlets that you can believe.

Again, this is an ideal scenario, I know, but IMO there is nothing that makes it technically impossible to achieve.

Journalism is, in fact, a university degree program. My journalist friend does indeed have an MFA in Journalism. This is not an unrealistic expectation if regular pay is on the other end.