No it doesn't. Tom Bombadil was also in Tokien's original stories, but there was no weird, pointless 40 minute interlude to visit him in the first LOTR film. Nor would it really have been defensible if it had. A major part of Jackson's task is reconfiguring Tolkien's story into one that would work well in a new medium. He failed in that task, and the result is a bloated, unenjoyable mess. You may as well defend typos in a novel by saying the author put them their first, and copy editors simply failed to note them.We know that. The thing is, that's their whole job. The job they didn't do. Which is why people criticized it in the first place.