Why does the Shield Champion archtype not replace the Close Weapon Mastery class feature? They lose proficiency with the close weapon group in the archtype.
Weapon and Armor Proficiency: A brawler is proficient with all simple weapons plus the handaxe, the short sword, and weapons from the close weapon group. She is proficient with light armor and shields (except tower shields).Shield Champion
Weapon and Armor Proficiency: A shield champion is proficient with all simple weapons and with shields as weapons. She is also proficient with light armor, and with bucklers, light shields, and heavy shields. This ability replaces the brawler's weapon and armor proficiency.Close Weapon Mastery (Ex): At 5th level, a brawler's damage with close weapons increases. When wielding a close weapon, she uses the unarmed strike damage of a brawler 4 levels lower instead of the base damage for that weapon (for example, a 5th-level Medium brawler wielding a punching dagger deals 1d6 points of damage instead of the weapon's normal 1d4). If the weapon normally deals more damage than this amount, its damage is unchanged. This ability does not affect any other aspect of the weapon. The brawler can decide to use the weapon's base damage instead of her adjusted unarmed strike damage—this decision must be declared before the attack roll is made.
This would be a bad choice to use, as it does nothing to prevent the penalty for none proficient use. Are there other archtypes, for any class, that make class features bad? Is there something here that I'm not seeing?