Taking everything in the article at face value (and assuming the substance actually exists and isn't an elaborate disinformation campaign), it took over a decad

Taking everything in the article at face value (and assuming the substance actually exists and isn't an elaborate disinformation campaign), it took over a decade and $100,000,000 to recreate this single part of the warhead. I don't know if we can call this a runaway sustainment success story. It's not as though we actually have limitless piles of money to throw at weapons systems.