Lol. That was one thing that made me go, "Whaaaaaa? BUFFED! HARDER?"
I even put out a post pre-patch saying that encounter is too tough. Now it's HARDER? Makes no sense. 4 level 4 characters or less against 4 Githyanki is suicide unless you start on high ground and do all your buffs before initiating, and even then...
So best not piss them off. Just do what they say and DON'T be honest. 😁
OR you could acquire the Iron Flask from the Caravan Strongbox and go crazy on them with a certain creature. edit: Also I'm pretty sure theres an option to call Lump, the ogre with the intelligence circlet to fight for you... you can make the fight easier on yourself, with plenty more solutions