That said, I've never liked talk radio (or even radio in general) very much. And am certainly not a fan of meandering chit-chat style podcasts. A lot of podcasts could also probably stand to be shorter as could many presentations. But even a simple 20-30 minute interview conveys information and nuance in a way that a transcript or article doesn't necessarily.
ADDED: There are of course also produced shows that are more than just the words spoken just as a film is more than a paragraph synopsis of the plot.
With that said, I'm not a music person, I never have been, so I don't turn to music often for entertainment and don't really find much joy in it. I also learn extremely well from spoken word and visuals and much less-so from written (probably why I like youtube videos that explain things).
On the contrary I've found that listening to air traffic control recordings is relaxing and helps with task-concentration because it follows strict procedures and no-one wastes time blethering. It's like a verbal metronome. You really have to make your own if you want high quality, though, since LiveATC is an earsore.
Really though, I just wonder how valuable these people think their time really is? I assume their "I need to be absorbing optimal information at all times" shtick is supposed to come across as smart, but it just comes across as a little slow.