Hiroyuki Kakudou; Digimon Adventure/02 director source: Digital Scratch
in response to the question:
Interviewer: “ He may be the main culprit, but Oikawa is a character that’s hard to hate. ”
*the DVD’s Footnote, included as well (bolded and italics for highlighting / emphasis mine): “ A given rule — Other conventional rules such as “ The main girl and boy fall in love with each other ” were also not taken on by Digimon. ”
VERY IMPORTANT NON-SORATO RELATED ADDITION / THE FULL QUOTE, TOO: (broken up into paragraphs to make it a bit more readable):
When you look upon the series as a whole to begin with, you become aware that it doesn’t contain a character that is 100% evil. Even among the main characters, you cannot say that all of them are perfectly good: somewhere inside of them they have a dark part of themselves. Among them is the character with the least evil in him, Daisuke. The only thing bad about him is his head. (laughs) There were a lot of anime normally made with the idea that a given rule must occur, but I decided to do them while having doubts about whether or not it was a good idea to take on such given rules without any detail. Even if we went on with these given rules, I tried to take appropriate steps in showing why such things had occurred through step-by-step arrangements and reasoning. That is why I tried to add a little bit of realness each time to the characters, despite the restrictions that they are from anime. And yet although these children have that bit of realness in them, in the center of them is Daisuke with the most anime-like personality. I made him that way on purpose because in a world that has a touch of reality in it, the anime-like Daisuke is prevented from doing much in the first half. But that in a way ends up idealizing Daisuke, which is how I wanted to bring him towards appearing as if he is exactly the right person to save the world.