Sure, and I'm guessing I learned to read assembly this way from IDA Pro; I'd had to deal with assembly long before IDA was a thing, but I was never an especially able reader of other people's assembly.

But even today, like, when the eBPF verifier coughs on a hairball, I end up pulling assembly into Emacs and then doing a quick pass marking up the basic blocks before I try to read it.

I'm sure its not too much trouble to whip up on my own but if you have any emacs lisp helping you do this I'd love to read (and use) it

I wish. If you write it, let me know.