What "EAs think EAs should do" might not be a great way of dealing with these questions, but it is valuable information. People might also get thrown off by the title when the post seems to care more about signals pointing towards risks (as opposed to monitoring EA behaviour).
Academics lean towards epistemic integrity
Leadership/Influencers/Elites should learn towards epistemic responsibility at the cost of integrity due to network effects
Bostrom has graduated from being just an academic to a thought leader and pretty influential figure in the movement, getting mainstream media attention. It makes sense for him, at this point in his career, to make the statement that he did regardless of his views on the topic.
"Let's make sure we have a fire extinguisher big enough before accidentally creating a fire big enough that puts the sun to shame"