S.R.
They're not trying to be unfriendly. From my own personal days as a teacher, they're trying to hit what they see as being the high points: the things that most parents want to discuss (after all, you only have 10 min!). When they say "Oh she's wonderful" and it sounds dismissive to you, what they're really saying is that she's not doing anything out of the ordinary that you need to be concerned about. They don't keep tabs on every little drama that happens every day. WHEN it happens, yes, they deal with it if they need to, but they don't file it away in their minds unless something stood out as needing to be watched.
Again, I promise they're not trying to dismiss you or be cold. They're just trying to give you a 10 min highlight reel of approximately 9 weeks worth of school. It's hard to do!