Based on the wording of the response, and a review of the ship tracking data, it appears that Zuckerburgs yacht may have been actively communicating on a different channel, and once they switched back, the assistance from the cruise ship was already underway.
Again, more facts may be revealed, but as of right now, I don;'t see any reason to believe the crew did anything wrong.
I can tell you think they did not do anything wrong. My guess is you have no training in the rules of the sea.
There is a reason why the cruise ship captain made a stink. There is code of conduct we try to live up and the Launchpad didn’t live up to expectations that other Captains hold sacred. It’s offensive.
A yacht with their budget has multiple VHF radios to monitor multiple channels.
https://en.wikipedia.org/wiki/Channel_16_VHF
The Launchpad didn’t break any laws they just revealed themselves to be a failure in good seamanship.