I’m not really arguing that, but it exists. And people are talking about how it fits in the context of the new films. The fact these movies are 7-9, then it sort of becomes relevant to what the rest of the saga contains. They could’ve not called these new films 7-9, but they decided to make it a part of a 9 film saga. But I get what you’re saying.
EDIT: If they had moved the restoring balance stuff to IX, then it takes the “balance shit” off the OT, making it more like it was before the prequels.