Those dates may be for some AWS services in some regions, but our cloud platform has not experienced downtime on those dates.
There are times where our auto-scaling takes a few minutes to come online, and these will not be picked up on our status page, but our status page is the best source of information for our platforms: https://status.invisioncommunity.com/
This morning we were alerted to a spike that was intermittent for about 8-10 minutes, which we intervened with quickly and scaling managed. It looks to be a lot of new bot traffic which our WAF eventually blocked.
Again, not all sites would have seen this. We have 5 clusters, and each cluster has multiple MySQL readers to account for spikes, but sometimes we need to launch new readers to manage traffic, and it can take a few minutes to replicate data across.
We are performing some maintenance which is a step towards better performance moving forwards with more resources on standby.