Well, consider that this podcast series spun out of the AGI class that Lex ran. As such, it's hardly surprising that he puts a touch more focus on the AGI side of things. And for me, I like that. I can find videos of Lecunn, Goodfellow, Schmidhuber, and Bengio talking about the low level technical details of their work. I actually appreciate hearing them talk about AGI, as my personal interests heavily involve thinking about the connection(s) between the currently trendy AI stuff (DL, DRL, GAN's, etc.) and what might eventually become AGI.