> But many (most?) people don't suffer criticism well in my experience - and this seems to be especially true of the people who are most worthy of being criticized.
This is definitely a cultural thing, I brought this up with my team recently, the concept of "negative feedback" and got two different reactions – my feedback to the team was about how we give negative feedback, and nobody at all agreed with that phrasing LOL
Either some people who heard what I said and thought, surely this means when you have done something wrong, and it's not actually negative feedback, but corrective feedback so that you know how to do that thing right in the future.
And the other reaction was, "negative feedback, positive feedback" no such thing it is all just feedback, but watch out for positive feedback because all of it is probably fake, and nobody is fooled by that "compliment sandwich" BS.
I don't think this is a problem for exit interviews, at least not exclusively; the point is that people are either receptive to feedback or they aren't. You can try to candy coat it, but if there's any chance that being direct is going to make the feedback more likely to land, I personally think I prefer the direct approach.
(Then again, I never notice compliment sandwiches, so maybe they work on me.)