I don’t come up with the labels. UPS does. Please don’t confuse fixes with modifications. Fixes apply to bugs. My code does not need fixing – it needs modifying/customizing. UPS’ code needs fixing. It’s they who return the labels that you see.
I am rewriting eSE and all of its add-ons from scratch and in the new version I will consider adding the functionality you request. I will not add it in the current version.
Again, the customization you ask for is possible by using the filter. Any WordPress developer can do it. If you don’t want me to do it, try elance.com.