If a pitcher is the one that makes an error causing runs to still be scored should it still be called 'unearned runs'? It's still their fault regardless of if it's fielding or pitching.
Also, I know why left handed hitters are good, I know why left handed pitchers are good in the sim, but why are left handed pitchers so coveted in real life baseball? Aren't they at a disadvantage to every right handed and switch hitter they face?