Furball lake is fun and I enjoy spending time there every now and then but I never use F3 and I never will. The truely good pilots who frequent Furball Lake (e.g. iKo, TA57x, etc) don't use F3 either. But the vast majority of DA pilots rely on their crutches. FYI - it's rather easy to tell who is and who isn't using F3 for the reasons mentioned above.
If you want to take one action that would make AH more like War Thunder, giving everyone inflight F3 in the main arenas would be it. Sorry...it's just a horrible idea.