I don't know about everyone mentioned, but Yudkowsky in particular rejects Pascal's wager (https://www.lesswrong.com/posts/ebiCeBHr7At8Yyq9R/being-half-rational

I don't know about everyone mentioned, but Yudkowsky in particular rejects Pascal's wager (https://www.lesswrong.com/posts/ebiCeBHr7At8Yyq9R/being-half-rational-about-pascal-s-wager-is-even-worse https://www.lesswrong.com/posts/ebiCeBHr7At8Yyq9R/being-half...) and argues (IIRC) that AGI poses a large risk of killing us all, rather than an infinitesimal risk.