Being 70% as good in nuclear engineering sounds scary AF. How would you rank Chernobyl? Better or worse than 70%?
Far worse than 70%. Chernobyl was a catastrophically flawed reactor design. Operators ran a badly planned safety test in which operators intentionally caused a dangerous state while key protections were disabled or bypassed.
Chernobyl was basically Russia then. The more honest comparison would be the numerous nuclear power plants in France.
70%… Not great, not terrible.
Being 70% as good does not mean causing accidents. Accidents are caused by systematic operational failures and fundamental design flaws.