You seemed to already grasp what they mean when you said in a different comment that you already have the books to reread, and that this is a different thing. The closest thing to which it could be an adaptation of is the last 50ish pages of the silmarillion? It had some pretty big structural changes to that in season 1 already, so I don’t think fan fiction is an overly harsh description.
Besides while it is often maligned, fan fiction is fine. It is okay to like fan fiction.
You seemed to already grasp what they mean when you said in a different comment that you already have the books to reread, and that this is a different thing. The closest thing to which it could be an adaptation of is the last 50ish pages of the silmarillion? It had some pretty big structural changes to that in season 1 already, so I don’t think fan fiction is an overly harsh description.
Besides while it is often maligned, fan fiction is fine. It is okay to like fan fiction.
It’s an adaption (using the term loosely) of the appendices of the LotR, which is all they have rights to.