I'd say for postdocs it's subtly different, if not necessarily better, than you suggest. With the kind of move we're talking about here, people will often (have to) move out of academia altogether. It's just too rare to find a position that you can transition into smoothly at short notice, and the young academic lifestyle doesn't allow for building up a lot of savings. The burnt bridges to your previous lab won't matter much in industry or government and your experience will typically be valued, but the price is that you are walking away from a career path that might have been your first choice.
What really worries me is that everybody who ends up a PI has been through this harrowing process, so it perpetuates itself; just broken people breaking people. A dramatic way to put it, I guess, but I don't know what else you can say about a PI demanding someone come into a lab on the same day as their appendectomy.
As a once broken PhD student and now early PI, je refuse to perpetuate the shattering. I'm still figuring it out, but i can it is very much at the core of my work.
