personally, i really dislike any serious risk consideration when it comes to thought experiments like pascal's mugging in regards to any superintelligent ai. it has always seemed to me like there is something very wrong with assuming both superintelligence, but also some kind of hyper-rationality that goes far outside of the bounds of pragmatism when it comes to maximizing utility. assuming they're also superintelligent, but also somehow naive enough to have no upper bounds on any sort of utility consideration, is just stupid. i don't know what yudhowsky's argument was though, if you could link it i'd like to give it a read.