Not sarcasm. I guess I've just had different experiences than you.
The larger point of the effort involved before the employees' last day still stands. But that's a hard one to speak to generally, since most folks in layoffs or firings don't talk about the process used to arrive at the decisions.
You haven’t experienced the last 2 years of layoffs across the tech industry? Do you have any friends in the industry? Do you avoid news about the industry?