I don't actually have a clue about this stuff but I think wind turbines actually won't produce any power when the wind is too strong because they might break or something.
With this storm control the turbines lineally increase the resistance and are only shut down when the wind speed reaches more than 34 m/s as a 10 minute average. That's 122km/h. [0] The recent storm reached these levels at times, but didn't sustain them for longer periods over larger areas.
[0] https://www.enercon.de/en/technology/wec-features/ I'm sure other producers have similar technology.
[0] https://energy-charts.de/power.htm?source=all-sources&year=2...
Mostly wind turbines have issues with frequency as you don't want to change/adjust frequency too much (adds to cost) to that of the main grid they only generate when within acceptable frequency ranges and internal equipment is able to compensate.