CM rewards shouldn't have to be account wide. It removes half the point of earning them on multiple toons and it makes them less personal.
I guess I don't really mind the weapons became account wide because the rewards were shoddy anyways, only being able to use 3 or 4 weapons wasn't too exciting and half of them are boring models.
If you missed out then good news, new limited rewards are coming! Now you have more reason to play the harder stuff! Yay for incentives!