You stated that you didn’t need to change the adventure because your players are “mature adults, so...” directly implying that OP’s players were not.I did not insulted anyone. I did not even implied what you are saying. Reread my posts.
And my solution is still the same. Keep to the castle, this would be the best solution short of denaturing the adventure itself.
You stated that the Vistani might need to be changed if the players have “sensitivity problems.” Which implies that the “problem” is on the part of the players, even though the adventure authors themselves have admitted that the portrayal of Vistani in the adventure is a problem.
You are posting in this thread for your own satisfaction and literally nobody else’s. OP specifically said they don’t need an explanation for why they are “wrong” to change the adventure- they just need suggestions for changing it.