So... the gameplay is better because it is not realistic?
Overall: Yes.
Ah is a fighting game, that's all it's really about. All stuff beyond that is just a way to create combat, give players a purpose to fight and create many different types of battles to keep it interesting. Realistic towns & bases would be almost impossible to capture in a reasonable time frame. Actually they wouldn't been captured by simply killing a bunch of buildings and dropping 10 troopers. Bases would not be operating again after 15 minutes, but on the other hand they would not be that easy to close in the first place. Realistic gameplay would also mean we would have to fly 10 or more sectors into combat, and planes would rarely have that much impact on ground war as they do have now.
You can't make the game (and that's what it is) fully realistic while retaining the fun.