I see infiltration as different than stealth, stealth is based on going in undetected while infiltration is more about getting in and dealing with the situations as they arise, if he can do it stealthily it's all the better but his specialty is just getting in and getting out as quickly as he can, even if he has to crack a few skills on the way, if it still bothers you I'll change it but I just see the twonas different skill sets