I don't think he was saying it's a shame it's being decommissioned, rather that it was a shame it's being scrapped. But the other poster's link does a good job

I don't think he was saying it's a shame it's being decommissioned, rather that it was a shame it's being scrapped. But the other poster's link does a good job explaining why it can't be turned into a museum or something after the reactors are removed.