The simple fact is...The fights have been more frequent and last longer since they added more ack and manned ack. A vulchfest is basically the death throws of a good fight. The longer you can delay the onset of the vulchfest, the better.. IMHO
In summary, ack is great..even more ack would be even better...It allows otherwise overwhelmed defenders subject to the horde-bang at least some chance of equalizing numbers to a point where mounting a meaningfull defense in the face of superior #'s w/ superior E becomes at least plausible

As we all know groundfire accounted for 80% of all aircraft lost. It's debateable whether real WWII Anti-Aircraft artillery was more ore less accurate. What is certain is there was certainly more of it. Furthermore, unlike in real life, a large AA artillery piece was not detroyed by machine gun fire like it is in AH. The crew may have been disabled , but it could be re-manned...
Zazen