AI bullcrap again. While there are a lot of myths surrounding the tail-hanging, they can indeed do it for a brief period. Especially juveniles, as they're much lighter. https://www.treehugger.com/things-you-didnt-know-about-opossums-4864240

Edit: Of course the branch should be low to the ground, and this should only be a few seconds. But yeah if that's the case this should cause no distress or injury. Unless they were intentionally placed hanging way up in a tree... Then yeah that's irresponsible.