There's fantasy armor, and then there's just stupid, ugly and impractical design choices for the sake of "sex appeal". Yes, Fire Emblem is a fantasy game, but keep in mind that female units USED to be armored like this:
Even female dark mages were more suited for combat and didn't go running around half-naked:
FE has always been a fantasy series with fantasy elements and fantasy designs, but the difference between Awakening/Fates and the rest of the series is the integrity IS gave to its characters, both in personailty and appearance.