The writing is merely how to you transmit the logic.

The author of the post seems to me to be saying that, given that logic of a great number of programs can be pretty simple, the way you express the logic becomes more of a concern.

Take the following:

  @post.comments

Compare it to:

  $this->post->findDependentRowset('Comment');

Both mean the same thing, but the latter seems like the programming equivalent of purple prose by comparison.