sorry, just like i said its been a long time since i last played it, but its good to know.
I mean theres not really a reason except for taste/preference due uncannyness.
But about 3D, most (not all of them) anime that try to use 3d ended up not being good to the point of breaking imersion in its scenes. 3d for realistic beings kinda requires really high quality models, more easily accepted 3d use is for stylized things like living objects, amorphed or small creatures like insects