Maybe I'm old and out of touch. It's been my experience (in the far past, mind you) that on online sites, women tend to find it refreshing when a guy didn't immediately send dick picks or try to do the fast hookup thing. When I see "just looking for a friend" in the profile, I don't immediately assume "with benefits" is included.They were on an app for hooking up. Not sure why you were surprised that they were looking for likeminded people.
On the other hand, I do find the "must be 6' tall" requirement on so many profiles just as shallow as a if guy put "must have big boobs" on his.