Yudkowsky and Soares’s “everybody dies” 
    narrative, while well-intentioned and 
    deeply felt (I have no doubt he believes 
    his message in his heart as well as 
    his eccentrically rational mind), isn’t 
    just wrong — it’s profoundly counterproductive.
Should I be more or less receptive to this argument that AI isn't going to kill us all, given that it's evidently being advanced by an AI?

While "isn’t just wrong — it’s profoundly counterproductive" does sound pretty AI-ish, "his eccentrically rational mind" definitely does not. So either an AI was used to help write this, or we try to remember that AI has this tone (and uses emdashes) precisely because real people also write like this.