From their point of view the issue is that automatic update happened without each update to be approved and tested. But the upstream issue not under their cont

From their point of view the issue is that automatic update happened without each update to be approved and tested. But the upstream issue not under their control is that the systemd update or behavior during update should not have broken things like that. Especially not with stable releases. And to be clear, accident can happen but it is not the first time. It is quite common. Once they totally bricked systems by accidentally wiping the nvram partition of computers.