The simplest, least effort thing that could have prevented the scale of issues is not automatically installing updates, but waiting four days and triggering it afterwards if no issues.
Automatically forwarding updates is also forwarding risk. The higher the impact area, the more worth it safe-guards are.
Testing/Staging or partial successive rollouts could have also mitigated a large number of issues, but requires more investment.
It’s a systematic multi-layered problem.
The simplest, least effort thing that could have prevented the scale of issues is not automatically installing updates, but waiting four days and triggering it afterwards if no issues.
Automatically forwarding updates is also forwarding risk. The higher the impact area, the more worth it safe-guards are.
Testing/Staging or partial successive rollouts could have also mitigated a large number of issues, but requires more investment.