[unilynx]

Unfortunately, this doesn't explain why this change was applied to 5 datacenters at the same time, or why they didn't do that but it still affected 5 of them.

I would have liked to hear more about how they are going to reduce the blast radius of such a change, because it sounds like something that could have been deployed to a single datacenter first

[Pick-A-Hill2019]

Agreed. Closest is this .... ' we are exploring improvements to our tools and processes to facilitate a finer grained, more incremental deployment method for wide, system-level changes.'