You are using the word "organism" in a very poetic metaphorical way. (And even then not a widely accepted one, but it being poetic, no one can really dispute it.) But the article talks about a very specific question in established physics which has already established terms and theories. It explains a valid question within that specific framework. In that framework talking about space as organism does not make a lot of sense, it doesn't add any new useful information.
The universe is not an organism in any accepted sense. It doesn't acquire energy from its environment, use that to reduce local entropy, and expel waste products. It is energy, it is expanding, and its entropy is reducing exactly in accord with thermodynamics.
If the universe is an organism, then so is my cup of tea!