Yes, this whole “they’re ruining the OT” argument makes absolutely no sense. Rian Johnson isn’t scribbling a marker all over the negatives of Star Wars, folks.
It’s not about ruining the OT. Future generations are going to watch this story as a nine part saga. So, it seems fair to discuss, whether the nine part saga is a better or worse story than the six part saga, just like it is fair to discuss, whether the six part Lucas saga is better or worse than the original trilogy.