There is no real point, other than having fun, to anything we do in this game.
If every encounter is a beautiful, cold-merge 1v1 dogfight, where superior ACM can be displayed and the clock of the guy who can't fly as well cleaned, well, he can just up again immediately, and no lasting effect (except maybe to his ego) has been achieved.
If a base is taken, it'll probably be taken back overnight, and worse case scenario is a map change, in which case we wash, rinse, repeat, until the end of time.
There is no cosmic difference between furballing, nice dueling/dogfighting, milkrunning, horde base taking, etc. It's all just different aspects of a game. And sometimes different subsets of the playerbase are amused by the different aspects of the game.
I think those who complain about the hordes have no real point, other than "some other people are enjoying the game on their own terms, and I don't happen to agree, so WAAAAAAAAAHHHHHHH."
The best thing to do about a horde, IMHO and only MHO, is to up a good plane and go try to break the horde. That's a good time, whether I succeed or fail!