Or (on K8S) you set your drain time to 0, the surge to 9999999% and the PDB to "screw everything". Now your deployments take 2 seconds (the time to pull down your change and run it).

You also just lost all your guardrails and collaborative controls, as well as created a dependency on all engineers being equally capable.

In other words, unless you are DHH and don't have to scale (both in terms of workload and terms of company), this scenario doesn't apply in the real world.