I think de Botton is on the right track, too. ^

(Everything is a remix.) It will be interesting to see how post-atheism develops, if along such lines. I plainly hope it does. The old school hardcore atheists promote the idea that atheism is nothing more than a skeptical response, and that it has nothing to do with rites and community.
Could post-atheism learn to synthesize these elements into its midst?
I think it's a lofty leap for atheism to make (and a good one.) But it won't be easy.
Atheists as a tribe are challenged, to say the least, when it comes to metaphors. The family picnic will be nerdy, but no achievement. It's the problem of poesy which will test the mettle of atheism.
Another question arises. That celebration, community and morality pose no hindrance to being sampled, but there are yet other tantalizing dimensions of religion which might beckon: is there at the end of the day even a real reason for atheists to look askance at mystical experience? de Botton's answer at the end of his ted talk falls somewhat short; I think he understands only marvelling, as though its sublimation is the 'superstructure of belief.' But I think religion offers the numinous beyond our sense of awe, and see no reason for atheists to forego it.