"perfect storm" is an overused cliché that needs to die. It suggests a confluence of extreme events that when occurring singly wouldn't do (much) damage but when occurring collectively overwhelm you by amplifying the overall severity.

If you have bi-yearly meetups. This is not unforeseen. In fact, it's quite predictable.

Lots of orgs have a no-realeases-before-the-weekend policy because stuff that happens Friday doesn't get fixed until Monday.