^ Doesn't matter, anyway. You don't send completed manuscripts to Pocket for Star Trek. You send outlines and proposals, and once those are hashed out and you're offered a contract, *then* you start writing the story.
As for this:
I find it interesting how the writers who created the characters apparently don't have any real say in these matters. Interesting --and a little disturbing, if you ask me....
That's why it's called "work for hire." If you want total control over everything you write, then write your own stuff and don't worry about writing media tie-in fiction. If you *do* want to write such material, then you go in knowing that everything you create ends up belonging to the property owner. That doesn't mean we don't consult each other whenever circumstances warrant, but that has nothing at all to do with requiring permission to use anything created by another writer working under a work-for-hire agreement.