A kali practitioner probably couldn't win against a boxer withoutsome sort of weapon (assuming all other stuff equal etc. etc.),, giving one a stick absolutely would help. If you give both the kali practitioner and the boxer a stick, and my moneys going to be on the kali guy. Not a failing of the system, the system is just focused around the idea that you carry a weapon on you.If someone's aikido fundamentally doesn't work. Why would a stick help them. Give two people who can't fight a Jo. And the winner will probably be the most aggressive or athletic guy.
If the Aikido guys Aikido does work then he won't need the stick.
This really is not rocket science.