While it's important that we respect and include those people, it's also true that had a human animator produced the same work, we should see the same response. The article's, or Hayao's response is flawed therefore in 2 ways:
1) That this is something that AI / animation technology has brought to us, truly, and
2) Just because it may not be well received by individuals with disabilities (by no means would this be rejected by all or maybe even most in that situation), that it is not effective animation (though I'm not judging its effectiveness either way, I'm just saying that this alone is a poor argument).