Listening between the lines, so to speak, it is evident that the hosts are pretty smart professionals who could discuss their specialist topic areas in great depth. However, they see their role as being to report back on diverse areas that might be new to us or even new to them - but which they think will be of interest to the rest of us. They are out there yelling, hey, guys, come and check this out - we don't understand it yet but it looks totally awesome...
And I for one am grateful for that - I mean, I can't research everything that's going on out there by myself, nobody can, right?
But you might ask, seriously, when they do devote some time to their nominal topic of the day, how much can these two guys teach me about Swift, say, or Haskell, in one hour? The answer is: exactly enough for me to know whether I need to learn more. And that knowledge, delivered with fun and warmth, is absolutely worth an hour of my time.