This is a purely hypothetical concern, although it could have escalated to become a problem.
I recently took delivery on a laptop to replace another unit. The old system failed before I removed the SU 2015 license. (It’s a single user license which allows installation on up to 2 computers at the same time, provided SU is not actively run on each at the same time.) I was not able to install my license on the new unit because the license was registered to 2 computers already and the old system couldn’t be powered up. I was prepared to install SU 2014 in lieu of the more recently licensed version, but I was not required to resort to that as, fortunately, I was able to boot the old system and remove the license.
If the old system had not powered up, the license would not have been removed and wouldn’t be available for use on this new laptop. What can be done under the scenario where the system fails before the SU license is removed?