The Miyazaki quote is always taken out of context, the disgust he utters has nothing to do with automation of grunt work and everything to do with the horror content he just witnessed. Miyazaki is not one who insists on everything Ghibli being hand drawn, his son even uses cartoonish CGI, which I think looks awful.

This type of quality is close to enabling a storyboarder like Miyazaki do an entire animation on their own. I have yet to hear him say he would not use such technology, despite him being rather opinionated.