A partial liver transplant wasn't viable for someone this sick, so when the partial transplant failed, they would have to resort to a full transplant from a dead donor, or she would die in operation.
Since she wasn't eligible, a partial transplant was just a death sentence.
Also, even if it was permanent, it would still be something like a
permanently_removed
set toTRUE
in a database. License keys probably are one of those things no company truly ever deletes from their records.