There seems to be a lot missing here. What was the "legal flex" that your boss did? And why would you be at risk of some "legal issue" for disclosing this discussion?
As for what I could be subject to, could this be considered discussing publicly private company information?
I'd take a breather on this and get some perspective. Your boss is acknowledging that the work is useful and that's a start. Just relax.
I'm curious what your rush is to get it public other than it being "neat".