Morrison's run is amazing imo. It can be read on many levels. As I pointed out once, imo it's also a metaphor of the industry. Sublime being the publishers who refuse evolution. I don't have the energy to develop my theory, but imo, Jean was a kind of metaphor of Morrison himself :
Jean Grey :"Did I have to fix something that was dying?" = Morrison was hired by Marvel because he was supposed to fix a damaged franchise, in a dying industry.
"The badly wounded orphan universe" = the X-men universe.
"It lost its parents when unity broke out across the mega system" = It lost its writers and artists because of disagreements in the publishing offices.
Editing to add a few points :
- Many times, Jean said things like "if I can think about it, I can make it real" = who can think about something and make it real ? God. In the comic industry, who make ideas and thoughts "real" : a writer. A writer is the "god", the creator of the story and the characters he writes about. He can kill them, he can decide about their fate. Again, Jean = Morrison.
- When Jean was resurrected after being mercy-killed by Logan, as they were headed to the sun, Jean said she didn't know how long they would allow her to stay. Who are those mysterious "they"? Can it be the publishers? It's an important point. think about it : who didn't stay? Jean and Morrison.
- When Jean meets Quentin in the WHR, he tells her "If you want to grow a future to replace the one you cut away, you have to water it with your heart's blood, they said. And they said I was to tell you to hurry" = Publishers asked Morrison to change the direction of the X-Men book, and they asked him to do it with with his heart, his sincerity, his integrity. But they won't allow writers to take time to get results : they want fast results. They don't let writers grow a real better future for the story/the x-Men universe.
- About Sublime being the publishers : Sublime is a very old sentient bacteria who wants to replaces mutants. Mutants are evolution. Mutants are new ideas, new concepts. Sublime/the publishers want to replace new ideas by their old ideas.
You are free to agree or disagree with me of course. It's the beauty of interpretation.