Nice and well-said, but the only issue is that we didn't get to see the older kids' interactions much. You know, like in a casual setting.
Personally, I still feel it was a realistic approach if viewed in the following way...
Sora liked Taichi
Taichi didn't notice or acknowledge it and viewed Sora as one of the guys
Sora slowly outgrew her crush on Taichi because he never noticed her as a girl
Taichi finally started developing a crush on her (still feel that the Christmas ep showed this given Agumon's line)
Sora had fallen for someone else (Yamato) unaware of Taichi's feelings
The only thing I questioned was Yamato in all of this when originally watching. Wish the exchange would've been shown, but at the end of the day, it's just not that kind of show. lol