Yeah, this is a bit hairy. On the one hand it's dubious information, on the other hand it goes against free speech and Amazon becomes arbiter of what is right and wrong, allowed and disallowed. I don't think this should be Amazon's job.

In this case, one can make the case this is the right decision, but the same decision later on may result in the wrong decision.

Should they go against conspiracy theorists? JFK, whatever.