Coal fired plants are messy: Huge piles of dirty coal, noisy delivery trains, leaky steam pipes and boilers, puddles on the floor, etc. But it's ok, because other than the routinely accepted danger of falling or getting burned, that's just how big industrial plants are. (Oil refineries, too, for example.)
When you try to run a nuclear plant with the same sort of attitude, it simply doesn't work. You get lots of regulatory violations, press investigations, and basically just a big bunch of trouble.
The cultural attitudes required to run a successful nuke are hard for an energy company to develop.
For example German plants don't look like that anymore. *Lunatic*, n. One whose delusions are out of fashion.