To be fair, a lot of content on a podcast-like format is like 5 minutes of ideas stretched out to 115 minutes because that's what podcasts typically boil down to. Doesn't matter if you miss out on some detail because there's just not much subtlety to anything shaped up like a podcast. You can walk away from it for 5 minutes and come back and often you'll not feel like you've lost any information.

You'd probably miss out on quite a lot more if you played a Platonic dialogue back at 2x speed.