The original snippet was more about the acausal stuff, and wasn’t Extrapolation, and the distinct argument I subsequently mentioned about simulators was Extrapolation.
There’s no quick objection I can give to your response specifically (except to simplistically say “no, I don’t buy it, we know more than that, we can have some reasonable guesses about simulators’ intentions”) - properly laying out my disagreements would take a little bit of time and effort, as is usually the case for deep worldview differences.
Interesting stuff! I probably don’t buy these as major worries but yeah, interesting.