I dont like this idea at all. Deathporting is already a major problem.
I think with the "climb" option that Xsyon said before is much better. There are still ways to get stuck, but I'm not happy at all with this type of choice.
Only way I can see something like this working is if you left everything on the ground where you /unstucked at. But then I think people wouldn't be happy with that either.
They could do like Darkfall does and make it like a spell, where it takes like 3 mins to cast, and it can be interrupted. But still, not a major fan of it at all.