Their change was bad, that was May 12. Since that seemed OK on May 13,14,… there wasn’t much indicating that change would blow up weeks later. For example if th

Their change was bad, that was May 12. Since that seemed OK on May 13,14,… there wasn’t much indicating that change would blow up weeks later. For example if they roll it out gradually, they would reach 100% rollout with all lights being green The customer change was a valid configuration. That was yesterday.