I would take it a step further and argue that it's not so much a topic as facts. Like objectively measurable things about the real world.
There's always going to be some limit to what we can actually measure and how much time we have to do it, but there's no reason not to try to get close to what we we're capable of doing.
I would argue that there are very few people who are actually authorities on a subject worth uncritically transcribing for 3 hours on a subject. Elon Musk is an easy target, the only thing he's an expert on is being Elon Musk, which isn't a very interesting topic.
What he has to say on any given subject does sometimes matter, because some people believe what he says, so it's useful for me to know some of it, but it's more useful to know what the actual facts are.
I don't want reporters who write an article that says "well I talked to one side and they said it's raining and I talked to the other side and they said it was hailing", I want a reporter who goes out and checks what the weather actually is.
Wikipedia's definition seems excellent to me:
> Journalism is the production and distribution of reports on the interaction of events, facts, ideas, and people that are the "news of the day" and that informs society to at least some degree of accuracy.
That "some degree" is an important concession. Nobody will be right all the time but the objective of journalism is to discover and present the truth of a topic.
Giving one person an uncritical platform for three hours isn’t journalism. For that to resemble journalism you would have to squint so hard your eyes would be shut.