The premise requires that the viewer suspend reasoning - might be interesting if I can keep from yelling at the TV...
I'm a sucker for Kung Fu movies with wire work ... such that I suppress any expectation of laws of physic being obeyed or rational behavior by characters ... it's reality escapist material for me.
(and yes, even a Mad Max dystopian future, with folks fighting for weapons, would be more realistic - and enjoyable to me as well)