>>37238453It's mainly the hand drawn nature of the show as well as its breadth of content. Not a lot of time for corrections, and fairly relaxed standards as far as character sheets are concerned.
For the first season in particular there was also just a lot of freedom due to
>>37238470 -- though even when the show had matured toward the back half of Johto there was still a noticeable difference in styles between animators.
You can still identify individual animators in the more recent seasons but the art direction has become much more consistent since AG so spotting differences is more nuanced.
