NSA Claims Iran Learned from Western Cyberattacks
firstlook.org
firstlook.org
In some ways, perhaps Stuxnet did the world a favor, but showing the vulnerability of airgapped infrastructure that people assume is safe from attack. Stuxnet may have accelerated the capabilities of adversaries, but sooner or later, it would have been developed anyway.
I would argue that if your system has a flaw, and the threat model is such that it's feasible for an entity with the resources of a nation state to take advantage of and the value of penetration is high, sooner or later, it will be taken advantage of.
So yes, in that sense, it is inevitable. There's no benefit to closing our eyes and hope that no other state'e NSA equivalent will be able to penetrate our flaws.