I'm all right with it really because it doesn't really matter. Radioactive material isn't really dangerous at least in any sensible context and it doesn't really put out a lot of carbon so if Microsoft want to restart nuclear power station then I don't really have any objection.
As to whether they need to be doing this is another question, but the fact that they're doing it at all doesn't really bother me.
There's always the outside possibility that they decide that the nuclear power station isn't enough and end up building a Dyson Sphere or something.
It used to take a computer with a ton of ptocessors to beat the best human. Now your phone can do it. When your most common tasks can be done on a phone NPU, and fewer GPUs need to be in the cloud it will get more efficient