Repetition, repetition, repetition

"Rayan has more recently claimed that the repetitions in the stanza charm the reader into forgetting the main argument of the ode"

Yes, I find it interesting that Keats chose so much repetition in the third stanza, but I disagree with this quote. First of all I kind of feel like Keats is trying to get a different point across in each stanza. In the third stanza he keeps repeating the word happy, I don't think this is to avoid the main point. I really think he is trying to capture the thoughts or feelings of the narrator, or the people/images that are on the urn.