Actually, despite the AP's best spin, Florida had a major blackout due to an incident at a substation that triggered the shutdown of two nuclear generating units at Turkey Point as well as a total of 9 fossil-powered generating units and more than 20 transmission lines. The result was the loss of about 3800 megawatts of customer load through either the loss of supply or through automatic load-shedding devices (had these automatic load shedding devices not been present, the blackout would have cascaded and spread much further).
The Nuclear plant shutdown was not the cause of the blackout, nor would it be as long as utilities in that state are/were following NERC-mandated contingency-based policy.
Sorry, I had caught that last night, and my shorthand was misleading here. Still shows that a variety of errors can knock out power.
But you raise an important point — utilities know that a nuclear plant can go offline in a matter of minutes, and are supposed to plan for that. Same should be true for wind generation.