This is interesting because it is much less subtle than stuxnet. One of the core features of stuxnet was that it broke centrifuges in a way that looked like (I think) manufacturering faults. That's why it went on so long and did so much damage: no one thought to look for it. It even faked logs I believe. This incident seems to be the opposite: a big one day event timed to make a splash and be quite obvious...
STUXNet, by all accounts, was also not very subtle though. They packed the thing with so many exploits that the virus was ubiquitous and very obviously nation-state produced.
The point is that it did its damage in a very under-the-radar way so it took a long time for anyone to even realize what they were dealing with.