To be fair, modern animators in general seem to hate children and genuinely believe those little bastards are pushing them down from reaching their true artistic heights. Probably the most egregious example is AT. The staff made a huge effort to alienate children and tried really hard to make a DEEP and meaningful plot with a cartoon about a kid and a magical dog fighting an ineffectual comical villain and defending a bumblegum princess.
Children can be annoying but unlike adults, their minds aren't set down in a mold yet so their imagination run free. Children are innocent and that's why they're cruel in their own special way. Personally I found disgusting modern animators despise children when animation should be the medium that appreciate the most the raw power of imagination and thinking outside the box that school imposed us from our early childhood.