I will not argue for ever about how the PT are indeed different from the OT, we all are agree about that and we all agree that the OT are better.
But you remember me those who say that the last album of their favorit rock band sucks because it does not sound like the old ones. But it's still the same band! just different mood and/or age. You can say you don't like the last album, but you can't say it's not the same band. It's just that their vision of the music don't fit yours anymore.
And saying that it's not the same univers sounds a bit like you don't want to face the true. Which is that our so beloved movie saga is not exactly the same anymore. You can blind yourself pretending it's not Star Wars, but the new generations will mostly watch them from ep1 to ep6 and we can't do anything about that. All we can do is to show us the Adywan revisited OT! ;)
PS: This was not an angry post against anyone (as I am french, sometimes I don't know if the tone of my english is appropriate or not!)