Sorry, this is untrue. Enterprises have SOCs and oncalls, if there is a high risk they can do at least minimal testing (which would have found this issue as it has a 100% bsod rate) and then fleet rollout. It would have been rolled out by Friday evening in this case without crashing hundred of thousands of servers.

The CS customer has decided to offload the responsibility of its fleet to CS. In my opinion that's bullshit and negligence (it doesn't mean I don't understand why they did it), particularly at the scale of some of the customers :)