I quess my original post might've come across as sarcastic or cynical, but that wasn't my intention. I honestly hadn't heard what precipitated the rollback and thought I'd ask here.
As for rollbacks being nothing new...mebbe. But I can't recall ever (this going back to the late 80s) seeing one happen in a game that I played. Perhaps one did and my memory, in my old age, is getting faulty. But I really can't recall one.