Keep in mind hordes have many sizes, shapes and flavors in AH. Not ALL hordes are bad, but many can be and almost all are situational (IE: sometimes it's better to be the horde, and othertimes it's better to be the horded).
And if we needed any more proof that this change is to lead us away from the NOE bread-n-butter base taking strategy, how many people here in this thread assumed the ceiling to be at 200' previously instead of the 500' that it's was set at forever (and anyone who cared to research it previously could of easily found it) due to the number of these raids organized and ran as such?