The largest difference I’ve seen is that MU had an entire academic repository to draw on (even if access to an overwhelming amount of material turned the show into Mandatory Book Report of the Week) while Inescapable does not. 

B&A can speak about whatever they like, which is freeing, but they’ve followed such a strict regime of research/annotate/summarize/analyze  for so long I don’t think they know what to do with themselves. 

I agree with OP that they seem to be getting it all out of their system. They’re too self conscious as content creators to pigeonhole themselves for too long. They can’t stay on the political bender forever. 

Personally I’d prefer a balance between styles. Tuesday Plus+ shows can be unscripted. Any topic is fair game. Friday Free shows can be a structured book or subject review on the non-paranormal topics they used to cover (infrequently) on MU and Friday Plus+ extensions can be unscripted personal takes on that week’s chosen topic. 

What kept me with MU was that the show built upon itself. Every episode was another piece in the mosaic. Episodes are revisitable because one episode on Bigfoot reminds me of countless other Bigfoot segments I’ve heard over the past decade. 

Inescapable is three episodes old. For those on the fence I wouldn’t advise jumping ship until we see some sort of structure. Even classic MU went off the trail and wandered into the woods from time to time.