Tolkiens work itself has been proven to be badly written in many places, the thing he was best known for is world building, his writing not so much, far too many plot holes, things that dont make sense at all like how can it take 100 years for elves to travel a very short distance, you dont need to like the show but dont pretend the books were magically free for major flaws. Even galadriel in the books is considered a minor character, she only got a little more light in the films.