Errr, wouldn´t it be easier to use the same names internally ? Or some kind of dev hardmode perhaps ? :p
Changing logical names after they have propogated throughout the system and are being referred to by other systems has a tendency to make computers very sad, in my experience. The general practice is to change the outwardly-facing message to the user, but keep the logical name the same.
Another strange behavior of this assignment is that it seems to have a cooldown, but will still show up as being available on the bartender even when on CD. If you try to take the mission, it will allow you slot DOffs, but then say "failed to start so and so" and get removed from your available assignments. I'm guessing this is a technical limitation of UI that the bartender can't show assignment cooldowns in the way a normal questgiver can show cooldowns for daily quests?