When Teal'c and Ishta prepare to fight, she drops her cape right behind her and he drops his jacket right behind him, bu,t when the fight begins, neither object is seen on the ground. Also, after the fight, Ishta walks off without putting her cape on or even picking it up, but, in the next scene, which is obviously not much later, she is wearing it.
Nesa will die without getting a symbiote, yet in S1E11 Bloodlines Teal'C goes to Chulak to prevent a symbiote from being put into Ray'C.
When the four warrior Jaffa women come to the SGC to see if Tretonin would work for them, their symbiotes were kept alive in tanks. Since 3 of them were successfully transitioned to Tretonin and 1 died, there were at least 3 available symbiotes that could have been given to Neith and her little sister. Even if they had refused to try Tretonin, there was no need for their lives to be in danger or to risk the final raid on the rebel Jaffa.