Ah gotcha, well not being able to edit their traits is a willing compromise id think until they "Hopefully" implement female henchmen. Being able to edit traits on every other unit type kind of makes up for it, minus champions.
At least when they level up we're still free to edit the level up traits n skills as we wish though. Was having fun tryin interesting setups on the default henchmen, taking my torch bearer, sending em down the path of the mage, giving him a flame shooting staff n such, and i made a sniper bow using henchmen, just didnt get a chance to use him much yet
I still look forward to making that badass Valkyrie spear using female henchmen one day