"Hoenn? Team Aqua? Team Magma?"
Given that trainers seem to simply drop out of any sort of schooling to go adventuring (nor do they show any interest in media - 95% of the time, TVs only show things that Mom/Dad might like), it's actually 100% completely sensible for them to have no basic concept of nearby geography or recent events. In fact, the only unrealistic part of this statement is that it implies the character *does* know that Regma consists of more than just their hometown and Amity :P
Anyway, looking forward to the next release.