I think you’re really just looking at it all wrong. I’m not sure I understand the argument.
I could say the same for you. I don’t understand at all how the prequels fit the hero’s journey. I guess the sequels kind of fit it, but Rey’s journey has so many unnecessary distractions that it’s hopelessly confused.
Hero’s journey is just a framework that describes a type of storytelling. It’s not supposed to be a rigid step by step process for storytelling. It’s not even really accurate to say that the OT is the hero’s journey because that’s only describing Luke. Anyway, if you look at the structure, it definitely fits Anakin. I mean even just besides that the OT and the PT have the same basic story, just with opposite endings. Anakin fills out the hero’s journey almost to a T, though admittedly this includes his story through the OT, but arguably the hero’s journey fits Luke best when viewed with the ST involved too, so again, not really a perfect way to describe it.
I think Rey’s story is pretty clear. I wouldn’t say it’s confused so much as ultimately dumbed down, with the overall thematic thrust of the trilogy being the thing that is confused in the last chapter.
Anyway, I think it’s a confusing argument because like I said I don’t really understand the point being made - OT is one thing, PT is another thing, and then ST is a third thing but only the ST is left out? But really what I don’t get what’s being argued in relation to the topic’s question. You seem to be talking about what kind of stories they are (which of course I disagree with as I’ve said, I think they’re all operating in the same space), but the question is not that, it’s what are they about.