I think generalizing fire users as lazy isn't really good for discussion. With the most recent skill patch, I'd argue that fire build is actually ahead of lightning now that you can use Blade Storm for 6-8 instant Dragontongues and you never run out of chi. Assuming you're actually using the build correctly, fire build is as work intensive as lightning, if not more considering you do still have to anicancel if you want maximum dps. For lightning build, you have to manage your chi, but the point still stands that you will never have reliably infinite chi, so your burst window is just that, a window.
A better more mature way of stating it would be:
Lightning = Burst dps
Fire = Sustained dps