You do understand that last Thursday was a major holiday here in the US, and because of that, they likely took Friday off as well?
Meaning - any development and testing (giggle) that goes into the patch that would normally be done on Friday had to be done on Monday, and then fixes applied Tuesday for a Wednesday patch?
So? Was the public holiday a spur of the moment thing? No, there is no reason they could not have had things prepared in advance.