Lowering the seat will also make it quite a bit worse for people with long legs. The height of the usual seats is already too low. It would be better if they raised the middle seat instead but I guess that adds cost/weight.
It'd be nice if the seat height were adjustable, but that would just result in the seats breaking down more often I think. I have long legs, but not that long a torso for my height, so a slightly elevated seat would be nice for me, but other tall men might be miserable.