That's not why they were banned, and in any case lifting a ban on building something that nobody will build doesn't seem like good use of legislators time.
At least one Kanton has already requested a new build.
https://www.nuklearforum.ch/de/news/neues-kernkraftwerk-im-a...
At least one Kanton has already requested a new build.
https://www.nuklearforum.ch/de/news/neues-kernkraftwerk-im-a...