Deuteronomy 4:33 (ESV)

33 Did any people ever hear the voice of a god speaking out of the midst of the fire, as you have heard, and still live?

Another rhetorical question is raised: has any other people in the history of the world experienced God like the Israelites did on Mount Sinai? The only possible answer is, No. One of the incredible things of that aweseome experience was that Israel survived.