The idea is that forced speech is different than free speech. That means that someone can force you to not say something, but not force you to say something.
- The government cannot force you to update the canary. A court cannot get you to update it, because it's forced speech to demand an update.
- You created the canary of your own accord, and are responsible for its effects. Not updating the canary is, effectively, speech.
Though, from [0]:
"Realistically, though, courts compel speech all the time. Court-ordered apologies, disclosures, and notices are not unusual. And if ever a court would be inclined to compel speech, it would be in a situation like this one, where a company intentionally set out to get around a gag order with this kind of convoluted sea-lawyering."