Journalists are supposed to investigate, podcasters are supposed to have an opinion about the news, but not investigate itself. That's why the article says that journalism as a profession is dead.
While I see a traditional framing for the role of journalist, podcaster is a new job, so why should it be bound under those assumptions ?
I tried looking at my podcast list, and for most of them the hosts are either people in the field, basically on the ground ehen it comes to the news (when they're not creating the news themselves) and long form reports, including interviews and original research.
There's "news" podcasts out there, but coming from NPR for instance I'm not sure it's much different from the press/tv ones.