This scenario is not as ludicrous as you think…
A similar but totally different thing happened to me, where I knocked over a stack of 5 drives… out of 4 stacks… (18 drives total) when moving a system.
3 of those drives failed when re-installed.
Luckily none of them were in the same mirror.
BUT if I had’ve had only two raidz2 vdevs… which was the configuration before I switched to mirrors, then I probably would’ve lost a vdev.
(happy ending, most of the drives were replaced under warranty…)