I'm sorry but their is no evidence that NDGT was specifically only talking about a universe other than ours and plenty that he was talking about THE universe. This universe.
It is central to his argument that there are multiple (simulated) universes, of which ours is only one.
The intelligent creator is not contingent on any universe it creates. But it's universe is contingent on it. The IC is therefore the necessary being for that universe.
So what? It is still a natural being in a natural (or simulated) universe, just as we are.
I think then we have to call in two definitions from you to check since it seems you are saying that an intelligent creator not contingent on the universe it creates is a natural thing.
See above - of course it's a natural thing.
Define what you mean by technology and define what you mean by supernatural.
technology -
The application of scientific knowledge for practical purposes, especially in industry.Which applies directly to how universe simulation would work.
supernatural -
(of a manifestation or event) attributed to some force beyond scientific understanding or the laws of nature.Clearly a universe simulator would be using technology, not the supernatural.
I really don't know why I'm extending to you the courtesy you so rarely extend to others, and answering your questions directly. You argument is STUPID to its core; ridiculous, bizarre, contrived, silly, nonsensical, laughable, risible...
You are making a total arse of yourself.