That's the kookiest thing I've read in while. Merkel is long gone and there's nothing preventing the current government from turning the nuclear power plants back on...or resuming Nord-2 for that matter.
Except that the bureaucrats appointed to the Merkel government are mostly still there. And they still are implementing the suicidal energy policies promoted by her government.
It is hard to change the directions of bureaucratic organizations. Only wholesale firings will do that quickly.
You are correct, however in your notion that "there is nothing preventing the current government from turning the nuclear power plants back on...".
There are certainly no technical reasons that would prevent that. Only political inertia. Perhaps starving and freezing in the dark can change the direction of Germany. Of course, any leaders who try that will be called "NAZIs" by the Russians and the Leftist allies will all join in the chorus. The Russians have kompromat on many of the current politicians in Germany. They might be able to keep them down.
We are seeing an updated and much more sophisticated version of the Morgenthau Plan in action.