Let’s face it… fighting a T5 zerg, flanking them from the side, in a chokepoint, with half of the zerg being upleveled, the other half clueless about WvW.. is not that impressive in my opinion. AoN presents a 4 man in an excellent battle, on reset night, versus Maguuma and Fort Aspenwood, hitting them head on. Enjoy and thank you, people!
It's necessary to the pacing of the game; it leaves a few minutes for defenders to come help. You shouldn't be able to walk up to a keep and take it in less than a minute; that would be stupid.