[xanthopan]

> In most other contexts we encounter, stuffing an adjective in there means "NOT".

I think that's less a comment on grammar and more about how there's a tendency to name stuff that is similar to other stuff, yet markedly different, in oxymoronic ways. For example:

"virtual reality", "business ethics", "educational television", "military intelligence", "magic realism"

[mc32]

To me, none of those on their own, without context are oxymoronic. Yes, their meaning is often stretched without that being realized by the speaker, but at the same time they have a useful baseline meaning.