Plain and simple, why do most people not like Buzzsaw? Because it makes them change their playing style. It forces them out of their comfort zone. It challenges them to be successful. I love a good dogfight as much as the next guy, but I don't want to fight at 20K with possible puffy ack. Does that mean that Buzzsaw is a bad map, no. Does it mean I have to change my tactics, yes. Instead of whining about it, not you per say, I have to adapt to the map/terrain to become successful. I have almost no problems finding fights of all kinds when I'm on. I just had a fight on Buzzsaw with only 25 people in the arena with no problems. The problem isn't the map, it's the players not wanting to adapt and overcome.
While you have a point and I myself have branched out for this map, there are good reasons for dislicking it beyond cumfort zone issues. Mainly, playstyle discrepancies and immersion.
While there are a few other options besides fighters in the game, many of us play predominantly for the air side of the game - it is called Aces High after all and not WWII simulator. Though I am not disregarding the fun of GVs or any future growth in naval play, one must assume the large part of the customer base is looking to do things from the air. Bizzaro land with a 10k mountain to climb over only to reach a poorly placed base in a 1k alt valley, and strats you simply spawn into rather than fight to get to, just to name a couple examples, does not lend to immersion or aerial combat for the majority of the map.
On the immersion note, yes other maps might be a string of weird islands or a volcano like area, one could see these things being a natural environment or forgive it of some of the strange geography. But this Bizzaro land is too man made and just too cartoonesque.
Hopefully this shows why it is not simply a matter of old dog new tricks.