We were playing with this idea for Epoch and have it on the roadmap for 2.1.

We are still working on the Epoch 2.0 release and maybe I'll see if we can at least get support for the standard wp autoembeds in there. Might be easy to pull off.

You are right, of course... figuring out what to do with the embeds on deeply nested (and mobile) will take some tinkering. It's a fun challenge, though. On the list.