Well mostly its the D&D hyper focus here combined with WotC's unyeilding insistance that "Thog 8-int 8-cha 8-wis", whose only abilities are hit-with-stick & bag-of-hp, is supposed to be an equally useful & relevant PC in a level 20 magic users & auto-yes skill rogue game. Once you accept it isn't an issue in most other games and start ignoring WotC's cranial-rectal inversion game design habit you can design so nobody accidentally ends up as a incompetent lump of hit points.