Breaking Troika's Bones Against Chesterson's Fence

So I learned about Chesterson's Fence, glibly renamed Gygax's Fence, which in short is a "before you change a thing, think about why the thing is the way it is." Super echoes some of views on the AC vs DR of armor and hit points aren't meat arguments in D&D/OSR. This will be really brief, and to best of my ability specifically about the idea that you can write content for a game wrong. Starting