I have been made redundant before.
I took my redundancy gracefully and did not for one moment consider a vendetta against my previous employer. So why is that? Perhaps, during my tenure, they treated me better than the example given above? Or maybe, for some of us, whatever hits us, we have a sense of morality? Perhaps the company given above should have sought to communicate better with the grieving staff?
Surely in any relationship, whether: co-habiting partners, parents and children, best friends, employer and employee, etc. there should surely be multiple levels of communication before "all out war"?