> I'm not sure if it's intentional

This is the sort of comment that makes people lose faith in HN.

There totally are cases where it's intentional, and no they are not discussed on the internet for obvious reasons. People in the industry will absolutely know what I'm on about.

I didn't intend to dismiss your experience. From the opposite (software) side, these things are hard to document, and unclear hardware requirement documentation result from the complexity and (perhaps) unresolved internal conflict.