So long as it’s fully independent and disconnected from existing digital infrastructure it should be safer.

It's a puzzle, because anything with too many safety features can be easily disarmed. But anything with too few can be prematurely detonated.

Imagine what happens to the Taiwanese economy if there's a Chinese feint or false alarm and the facility bricks itself. A massive economic downturn would not work to the benefit of an island so heavily reliant on foreign trade.