I guess this is in part because it only needs amazing factories and not complex deployed and maintained infrastructure that is at risk of blowing up.
Solar seems to fix the mould of a disruptive technology to a T.
After all, if they could predict the future, why did they design a game rather than get rich in the stock market?
[0] Yes pollution from normal everyday fossil fuel power generation causes more damage and deaths in the aggregate but it's a diffuse hard to attribute kind of damage which makes it far less, for lack of a better way to say it, real to people. eg: Did living downwind of that unupgraded coal plant really kill them or is their death because of something else.
Games like SimCity often only supports ultradense Manhattan style cities and centralized solar plants through distribution networks. That combination doesn't work with solar technology. It should be like "Set up offgrid solar incentives program($1.5B)" buttons that reduces power draw proportionate to numbers of standalone houses that resets when disaster hits the parts of the map it was used on.
Nuclear's problem, despite it's Champions assertion that it's now safe and properly engineered, is it's still inherently dirty and that dirt follows it through out it's life. It also probably has bloody mines, but every step on the path of using nuclear requires security and safety, and even when it's disposed, it still requires safety and security. It loses because no one trusts anyone along the entire value chain to not cut corners that leads to unsafe practices.