If you kill ack, you ease the thing for the goons. Much more than structures themselves.
So, I think only VH is more important than ack, as for base capture is concerned. In this sense, IMO the ack is pretty well valued. There is a lot of points for the whole system. I would raise the VH value, and leave the rest as it is.
A base can be effectively capped by a couple fighters given there is no ack and osty&M16 stuff around, and thus, it can be taken. No way if ack-ack or VH is alive.
Cheers,
Pepe.