Really, it's a question of money. As the article makes clear, nuclear is on life support not so much because of much-maligned activists and benighted citizens, but because like coal it can't compete in the market. Nuclear already benefits from a long history of billions of dollars in subsidies including tax credits and exemption from liability and the vague notion that the government will take up any extraordinary costs (which can be considerable -- the Fukushima cleanup decade is currently projected to last decades and cost over $200b...whatever the utility absorbs will surely come around to haunt tax/rate payers).
At most article seems to srgue for extending the life of some reactors, presumably with subsidies ro competsate for competition from much cheaper solar, wind, and gas -- note that 2 out of 3 are already carbon friendly. So the choice is whather to shore up old tech or pour on the carbon-free gas (ha) for the next generation. Building new reactors is a non-starter: it can't be done fast enough and reactors have a long history f cost overruns and delays. This is all without mentioning that, yes, there are unique safety concerns with nuclear.