Semantics maybe, but.....
I offered the common terms for communication clarity.
A coop should be fully weather and predator proof, this one is neither.
Chicago can get wicked cold and have extreme winds....am just trying to help.
I know you're trying to help, but they are USING this structure as a coop. So saying it is not a coop just makes things more confusing. Saying it is not a GOOD coop for their situation keeps things clear.