As a Christian, I am quite at peace. I feel you have missed the point- this post is about the naturalist's outlook on its own terms, and the expressions therein are those of atheists that have told me as much. Not theists.

The point is that naturalists shouldn't be happy to die forever. They should be motivated to seek life and only discontentedly accept naturalism given its implications. Naturalism has nothing to offer that won't be lost eternally.