It does feel like the people working on Kado actually understand the weak points of toon-shaded 3DCG and try to compensate for them and is probably one of the better attempts so far. That said, I still get that strange sense of relief whenever the occasional handdrawn cut shows up (like the hum of the AC you've been filtering out suddenly stopping, that feeling).>>15562789
Problem is, it's not just a matter of having the renderer generate more in-between frames; to have smooth motion, even in 3DCG, you need to put in more work, which goes against the whole reason 3DCG is typically used in the first place: to save cost.
For example, consider mouth flaps. If you want smooth mouth motion, you pretty much need lip syncing; look at any mid-budget videogame where the mouth just opens and closes while a character is talking like they do in anime, just at a smooth framerate, for the reason why. At the same time, you can't just have the mouth move choppily while everything else moves smoothly (see Snack World for an example of that).