At work, this all happened on a commercial Linux distribution which we do pay for. As far as I recall, their support was unable to resolve the issue, hence rebuilding all those VMs. I’m not on the server team, so I don’t know many details, but I was affected by this issue and it caused a lot of grief across the organization.
Are you sure brtfs is supported in production by your commercial Linux distribution? I would be surprised if this is true. RedHat and Ubuntu do not support it.
So no, I don’t think we got what we paid for.