Well, that's obviously where you and I differ. For me, the main plot point was Palpatine's rise to power. I mean, his story is the one that keeps the films moving. Every move Palpatine makes keeps the films moving forward. Our anchor is Anakin.
But, yes, I can definitely understand the notion of keeping it the same. And I didn't mean to state that the Original Trilogy has no substance. It has plenty. It just doesn't have as much as the Prequels, but if you were to go by most critics, some would've said it had none at all. It had plenty, you just may not have liked it. There's a difference.