You've certainly had your share of odd experiences concerning Shorzen. I feel your pain, I had a lot of trouble with Capt. Jesh on Quesh. I never did complete it on my own, had a friend join me to take him down. Belatedly I found suggestions that I was supposed to interact with some consoles in the room with Jesh that would have made the fight less one-sided. I wonder if there was something like that with Shorzen, too. Maybe down in the pit that we were fighting around...? Dunno.
Glad you got past Shorzen without the "cheat". Based upon your description and my own experience in finally winning that battle, I feel like luck had a big part to play. That and the 3,500 credit med pack I purchased at Fleet.