Yep. I call it the "AWS Chicken Pox Party."
We got lucky this time, RDS, ELB, EC2 and Lightsail instances all in US-East-1 across multiple accounts and no issues (knock-on-wood and understand that we'll get it the next time). Especially happy as I had a two-day running neural net training job running and it's still going, that would have been depressing. Phew.