Sorry, I should have phrased better. I issued a "stop and start". Per the AWS thread:

> While executing a stop/start is absolutely fine to do, there is not a guarantee that you will land on an updated host. We are periodically polling for new instances and those impacted will receive new maintenance notifications accordingly.

Which I take to mean there's a chance you could land on an updated host. I'll update if any of those machines come back to the Events view.