"You know... of all the things I was expecting to see today, a teenager with pony ears wasn't exactly high on the list."
Well sure - strangeness is relative. For some people, it might look something like that. For Sunset Shimmer, it would probably include getting vacuumed up by the mirror portal, marooned on an unknown world, and having to rescue her friends from its furthest reaches. Then again, it might also include finding out that there's a lot more at stake here than the lives of seven teenagers.
It all depends on your point of view, really.