I've already explained why STUXNET isn't complicated rather exactly the kind of perfected simplicity that intelligence agencies will employ.

It was low to no risk, and potentially high reward sabotage op that could essentially be entirely developed and run without risking any assets or even sources. The technical complexity of the malware is irrelevant (and even that wasn't that complex, it was just flawless) were talking about the complexity of the op itself.

This op took no less skill and manpower, heck it likely took quite a bit more.