That and the maps are generaly way too small too, it's setup just for quick DM matches really, whereas A2 can have hueg maps that (with warp disabled) can take ships a good 5+mins to cross, leading to a slower paced game, and more tactical too, rather than just spam stuff to win.
Which also happens to be my RTS prefrence (and if I did it, I'd do it how I liek it.
But mostly cause I know soemwhat how to mod A2, not HW2