One of the hardest things to portray in 3D animation is physical force and stress. Even though 3D animation helps in getting there easier and cheaper, it lacks the ability to show sudden change of mass and shape, which are vital in portraying these physical aspects.
When you punch a wall, your fist doesn’t stay the same shape. It bends and compress and the wall also bends. 3D animations lacks the flexibility, which they give up to achieve easier/cost effective animation techniques. 3D animation is always cheaper than 2D animation, despite having a higher initial cost.
However, that doesn’t mean it’s bad. 3D animation, when putting in flexibility and volume, looks amazing. Pixar is an example of high quality 3D animation. I’m pretty sure they can make anime-esque fight scenes as well. It’s just that independent studios suffer from this because as easy it is to use 3D animation, it only gets increasingly harder as you progress.
If I were to draw two graphs in regards of quality (x) and required skill (y), 3D would be increasing proportional as compared to 2D’s linearly proportional.