Oh, my party DID get the stunning lightsaber away from the Trandoshan force user. They were so battered (seriously; the only two up were Princess Captain Kaylee and the Dr. Michaela Simona Quinntam... actually their names) that, having knocked the Trandoshan to 0 HP, they kicked him out of the ship, grabbed his lightsaber, and took off.

I so look forward to reintroducing them to him, once he's recovered.