That statistic is only about deaths. You still have to deal with nuclear accidents leading to evacuation of huge areas happening once around every 30 years (unknown unknowns and what not).

Germany has a high population density. Such a catastrophe happening in Germany would lead to millions getting evacuated.

Another issue is the safe disposal of nuclear waste. It might seem like a low risk, but over the huge timespan nuclear waste needs to be safeguarded that risk adds up. Of course there's also other sources of nuclear waste, but it's best to keep the amounts low.

Last, nuclear currently in the west runs into economic problems. New reactors are plagued by enormous cost overruns and struggle to compete with renewables. But also old reactors are starting to become prohibitively expensive to keep running.