Fair enough, but I think it really just depends on how you look at it. From my POV it’s just a box-checking exercise in the vast majority of cases, and a waste of your time (if you’re the one quitting). But you’re right, employers are super paranoid about this kind of thing (even though they have most of the power). If it is one of those disgruntled-gonna-sue people then you are right, it’s something they need to try to get out in front of.