A game like Syrim is 3D, so can't quite consider DOS2 3D. A game like BG2 is isometric, but can't quite equate DOS2 to that either. I stand by the "hybrid" assessment.
If you choose to use
computer graphic terms to describe
player perspective, that's your choice, though it will be difficult to have meaningful argument if one has to guess if the terms you use represent their meaning, or one you made up for them.