And you did all that without citing a book that the producers can only allude to.
Even without any rights to a book, they could have respected it, mainly by not changing things in way that contradict them, without quoting them at all. They don't have rights to book that say elves don't have wings and can't levitate, yet we didn't see Galadriel floating over the sea... On the other hand, they did make her a praeternatural swimmer which is... unheard of at least. You can avoid contradicting a book even wihtout any right to refer to the content of said book.
If you want to discuss the show based only on its internal consistency, without interference from the wider Tolkien material, you may be interested in a sister thread especially devoted to this point of view.