The Enlightened Master Crouching Cow
That's because they found a super effective weapon. What MC is showing isn't a bigger weapon that can directly change the battle. It is more like he is giving low cost vest to grassroots that will fight missiles. There is conflict of interest and the Ultimate Style is brand new, in a race for power with limited people who will abandon a bazooka for a super stable handgun? If everyone had a bazooka nothing could invade the town...
Daoist_Maker:agreed, I cannot imagine how in a survival situation people could become so obstinate to think there was one best way of fighting, this civilization kind of gives me the same bullheaded focused feeling as my autistic son, he's a genius for what he likes but anything that doesn't agree with his view he ignores or gets angry at, I love him dearly but am so glad we live in an easy time or else I doubt he'd thrive or possibly even survive