Still somewhat on topic...
During the last 2 months, I made the observation that the Wirbelwind in some situations even may have helped the airborne attackers. How?
The answer is greed & lazyness!
It's much simpler to get some kills vs. vulcher than it was in Ostwind, and an easy way to get lots of GV perks quickly. So everytime you hear the call "NOE ib AXX" you will see dozens of Wirbelwinds crawl out of the VH... just to stop 100ft later. I have seen many a field captured because most defenders jumped in a Wirbel, and most of that Wirbels never even tried to get to that town thats being killed quickly by 110's. Most of them do not even disperse over the airfield to effectively fend off the vulchers so that friendly fighters have a chance to take off. No, they are just sitting by the VH, hoping some enemy is dumb enough to fly into their gun's range.
5 mins later you will see the field ack popping one WW turret after another...