It was Ol' Sparky who insisted on the idea of a "perfect distance," but I find it difficult to follow why, since the distance/ratio (i.e., the evidence of intelligent design) is not constant.
The point as best as I can see was that the moon can perfectly eclipse the sun. The two have almost precisely the same apparent size in the sky.
Earth is sitting in quite a lot of other physical sweet spots, without which life-as-we-know-it couldn't have existed -- "evolved" or not.