Since the "uber-fake-wirb" was introduced into AH, it has claimed something on the order of 95% of all GV kills.
It's totally BS, in that any ping from any angle on any fighter/attack plane can kill or disable it (I've been brought down millions of times by lucky shots from Wirbs).
The issue at hand is the turret traverses way too fast, meaning a Wirb can attack one target, and with its super-faster-than-historical firing rate kill the target before it's released its bombs/ord, and then turn around in a full 180 and kill a second target before IT can kill the wirble either.
HTC needs to remove secondary fire, and just have the top guns fire for 20 rounds, then stop, and the bottom guns fire for 20 rounds. The end result is historical firing rates, and 1/2 as much BS instant-killing rounds in the air.
THEN they need to address the turret speed.
Firing rate is a high priority though. It's not about "this is low on the agenda for GVs" because it's a high impact on everything air-related, base-take related, rolling-to-enemy-fields-to-vulch-planes-on-runways related (and yes, many players do just that). It unbalances gameplay, IMO.