Just gotta try it yourself. Obviously if the pilots on your team sucks, then the other team has the advantage in the air and you can get wasted on the ground, but the ground can most certainly strike back, so it isn't as easy as "point, shoot, fly away".
If we were talking about MW3, you can call us lying scum all you want, but with battlefield there is a tiny chance what we say could be true.
The BF maps aren't as big as I expected them to be (at least the largest one), but I guess it is big enough to satisfy "the crowd".