I think this hits the nail on the head. I would say that more generally, a not insignificant number of OO design concepts were developed in an environment of c

I think this hits the nail on the head. I would say that more generally, a not insignificant number of OO design concepts were developed in an environment of coding modules meant to be used by other people (either in the form of frameworks, or multi million line monoliths). For a large number of developers, neither of these environments apply, but they are still abiding by the same rules.