Your taxonomy is not useful.
Of course ECS has an object system, it simulates objects. Know of any program whatsoever that simulates stuff without having a stuff system? Does that mean it is Stuff Oriented?
By bundling ECS in the OOP umbrella term, you trivialize the fundamental differences between ECS and class/object hierarchies found in older game engines and Qt, and you water down the "OOP" term to the point of meaninglessness. You wouldn't be the first one to do so.
Anyway, ECS wasn't my main point. My main point was, and remains, when someone mentions "OOP" in Hacker News or /r/programming, unless mentioned otherwise they mean C++/Java most of the time. The most notable exception are discussions over the meaning of "OOP".