hahaha well Kubernetes is the opposite of a special shuttle that keeps on flying. It crashes all the time, version updates etc. If you want stability go to apache or nginx.
The bug caused the scheduler to get stuck meaning pods assigned to nodes kept running, but no new pods would be scheduled.
https://github.com/kubernetes/kubernetes/issues/124930
That's a pretty good track record, and indicates a level of fail-safe design (everything continued working, even though a critical components kept crashinglooping).
There are many ways to solve the up/down issue and depends on which language you are running.