What to do if you catch your staff on a quiet vacation, according to an HR exec (opens in new tab)

Most of their points seemed reasonable to me, until the end “if they aren’t a high performer, fire them immediately”.

This is how almost all companies work, although it's rarely spelled out in a written policy.

I'm not even sure it's necessarily immoral (as long as it doesn't involve special treatment for extreme cases like SA), companies want to retain high performers so giving them perks like more leniency around attendance policies is one way to do that.