I feel like you two are talking about a different type of variance. It may be that Titanic is well-loved in every culture all over the world, ever. But there are still individuals who didn't enjoy it. I think sixes means that LW is unusually good at alieving that not everybody enjoyed Titanic.
I endorse this interpretation.
My favorite is that people get credit for updating based on evidence.
The more common reaction is for people to get criticized (by themselves and others) for not having known the truth sooner.