Even though this article is new, I'm not sure it has materially new ideas vs what some other labs have been claiming for years.
Enforcing safeguards that apply globally to good and bad actors alike so far as proved quite difficult - compute is essentially the only lever, and that's tenuous at best.
Unlike nuclear arms (where functionally there's a limit at MAD), so far we believe that with enough compute, energy, and algorithms, intelligence will continue to scale (and not only scale - but compound)