[apeace]

I think the two suggestions I made are more reasonable than claiming AWS "lied". It's understandable that your customer would be confused seeing the blue "i" instead of something yellow. But that doesn't mean they claimed "everything was operating normally".

In terms of your cluster, it takes a lot of testing and tweaking to ensure your cluster can reach consensus during partial/sporadic partitions. But it can and should be done if you need high availability (e.g. take nodes out of the cluster if they keep disconnecting, until they have a stable connection for X minutes).