Power grids are for high-trust societies.
True. And the grid is rapidly turning into a low trust environment. While it's true that some of the larger data center operators may be willing to put their money into power resources, many are not. Hoping that they can play the utilities against existing customers and get resources built for free*. So, having these existing customers take their revenue to go off and build their own pounds a stake in the heart of their scam: "We'll be here to buy your power. Trust me, bro."
*Utilities are basically in the business of trading long term capital financing for potential future, uncertain, short term revenue income. See WPPSS for what happens when predictions of furure revenue streams goes wrong.