Awesome, thanks for the translation jkl32428! That's the fullest response we've gotten so far. My sister was actually the one who asked the question at AX and she was really happy to read your post.
We also got the impression that Kurosawa was steering away from a romantic love relationship, and that route would seriously mess with the source material. But then they did add an anime-original early dynamic between Kumiko and Shuuichi, so they're not totally opposed to changes (or maybe just additions). If the AX panel host had allowed one more question, I was next in line and would have asked Kurosawa personally about the director's instructions on Kumiko's unique dynamic with Shuuichi in the first season. :P Oh well, that'll have to wait until another day.