The title, I think, is adopting a common view held by the religious, that is, that God gives life meaning. Now, that's some sort of logical fallacy I would assume (circular reasoning?). It hits my ears the same way as the "the world is beautiful and awe-inspiring, so, God."

An equally weird title/article could be "How atheists find beauty in the world". And the article could be about one sentence long: The same way as everyone else?

Beauty and meaning are both things which humans crave, and both things that they manufacture or interpret from their surroundings, to an extent. By which I mean, you can either FIND beauty or meaning in different things, or you can actually physically create art, or do volunteer work, or find passion in your job, etc. The religious just are allowed to pretend that they've found the "True" meaning that's the same for everyone.

Anyway, I suspect the article is titled as such, because it is targeting people who would ask the question in that manner; those who can't understand how atheists can find meaning without God. And the author figures that atheists will not be too upset by the wording anyway.

[When I say "religious people" or "atheists" I am speaking about "most religious people" and "most atheists", I'm talking about the average person in each group, not individuals, so if you're religious and you still think you need to create or find meaning in the world, please don't think I believe all of one group ubiquitously think one way.]