It's been said that the film was poorly marketed, and was up against some big competition (Avatar 2, Wakanda Forever, Knives Out 2).
As for reception, and claims to "originality", I see may reviews saying otherwise: "Strange World is a Disney milestone in terms of representation – but as a storytelling experience, this dazzlingly animated adventure offers little audiences haven't already seen." Many reviews are negative.
Avatar 2, Wakanda Forever, Knives Out: Glass Onion- Those can be testaments that audiences will come back for some more of the same by virtue of being sequels. But even sequels can tank if they're not a good movie on their own merits. It's easy to sell a bad movie by giving it a familiar name, look at Highlander II or Jaws the Revenge.
I'd also argue that Everything Everywhere All At Once was a film that proved itself without rehashing the same old material.
So I'm going to have to disagree with the case for Strange World. I think it's just another studio hack job. I wanted to like Raya but it fell flat for me, and the best thing about Encanto was the music. I can't think of a really solid Disney (not Pixar) animated film after Moana was released in 2016.