You're probably right about safety promotion, but calling it "clear" may be an overstatement. A possible counterargument:

Existing AI researchers are likely predisposed to think that their AGI is likely to naturally be both safe and powerful. If they are exposed to arguments that it will instead naturally be both dangerous and very powerful (the latter half of the argument can't be easily omitted; the potential danger is in part because of the high potential power), would it not be a natural result of confirmation bias for the preconception-contradicting "dangerous" half of the argument to be disbelieved and the preconception-confirming "very powerful" half of the argument to be believed?

Half of the AI researcher interviews posted to LessWrong appear to be with people who believe that "Garbage In, Garbage Out" only applies to arithmetic, not to morality. If the end result of persuasion is that as many as half of them have that mistake corrected while the remainder are merely convinced that they should work even harder, that may not be a net win.