Leaders in the MIRI/EA cult-o-sphere have advocated mass murder via nuclear weapons against towns that don't prevent people from performing too many multiplication operations. Why is anyone surprised that they'd engage in deceptive false flagging operations?
This is a lie, so you are either repeating a lie from someone else or lying yourself.
The people you are talking about have not advocated mass murder via nuclear weapons. The idea was precisely targeted non-nuclear strikes against only the servers themselves. (Which, would have plenty of forewarning to allow people to leave the building.)
The claim that they advocated for the use of nuclear weapons is a lie.