Dads, Fugitive, you guys are missing the point and purpose entirely.
This isn't about horde control, it's about developing a way to get the second arena to fill up and/or the arenas to balance as quickly as possible once caps kick in. Lusche's current caps system is better than the old one, however all momentum is lost when the boot happens, and you still have this horrible unbalance issue once the new arena opens.
Perks have value to the majority of players in AH, even players that like to win the war. How else are they expected to be able to afford the B29, Tempest, Jet, Tigers/Panthers? Jaboing bases only earns you a couple perks here and there, it's almost worthless for perk building Dads.
I personally think there would be a good percentage of players willing to switch on any given day at the cap time, maybe 15-20% or so, which would be the perfect number. With this idea it might only take Blue 20-30 minutes to fill up to capacity as opposed to 2-3 hours under the old system.
You could always post an ingame poll "Would you be willing to switch arenas mid day if you received a very large perk bonus multiplier for your troubles?"
Yes
No
Maybe
Not Applicable to me, I don't usually fly mid day