@Bufotenia Doing a little meta-gaming confirms your suspicion; that quest is not complete as of Early Access. Perhaps Larian will flesh it out in a new update soon.
I hope they do something about it soo. It doesn't add up with how the other tow quests about the parasite were developped, the encounter with the Githyanki patrol doesn't add anything to the parasite quest while both the Goblin one and the Druid one (hell even Ethel and the mindflyer in the Underdark) gave information about the parasite and hints on the complex situation behind the infestation.
