It doesn't just have to be designed right, it has to be built right. Like Fukishima where the design engineer resigned during construction over how low the sea wall was built. The sister plant which was closer to the epicenter had the proper sea wall and as such it was totally fine despite the higher waves.
The problem with nuclear is we can't have it until we have eliminated corruption. In that industry it can lead to a literal nuclear meltdown.
You can't wipe a continent out with the worst case coal plant failure. A reactor going critical and exploding, however "impossible" would do just that. Look at the Saudi plant going up. It is jokingly referred to as "a car with no seatbelts".
It is but it happens all the time. Google, Facebook, Amazon, and the rest all have been caught doing it on a large scale. Most of them even agreed not to hire from each others employee pool.
So glad Canada plans to litter our country with these soon. They want SMR's in every logging camp, remote community, mine, and so on. Sure they are more dangerous per GW and more costly per GW but they are MUCH cheaper initially so small unqualified companies can get involved. Let the good times roll.
The problem with nuclear is we can't have it until we have eliminated corruption. In that industry it can lead to a literal nuclear meltdown.