The events I'm suggesting aren't a 'combined air and ground event.' They are tank events with some air elements.
AFAIK the general consensus is the GV guys (at least the ones today and the ones who participate in the AvA on Thursdays) don't want said air elements. Similarly to the MA, there is a frustration of being bombed which I totally understand.
Something I've longed for is some ability to have AI tank columns like AI plane missions. Even if they were static. It would give some use for the Stuka G, Hurri IID, IL2, and other various fighter-bombers. We can place static vehicles on the fly but they don't have the characteristics of a tank, they explode when you breathe on them, sadly.