I personally think Miqo'te simple go with the flow. If they're from a tribal group and consider themselves as such, their name is perhaps changed over time to represent it.
 Or as others have said: A tribal who's moved to the city and in an attempt to fit in has changed their name to be more Urban.
 Or as others have said: A tribal who's moved to the city and in an attempt to fit in has changed their name to be more Urban.