It's not a wise financial choice, since they currently generate a net loss of 1 billion each year, with no better prospects for the next 10 years. They companies running the reactors even tried to give them away for free to Électricité de France, with no luck. I am against ruling out nuclear tech, like this initiative wanted, but the current state of nuclear power in Switzerland is a debacle. Ultimately the state will have to to pay for the shutdown anyway, be it now or in 2025. It would have been a wise financial choice to shut them down now.