I wouldn't return it because I don't care but I would imagine there are people who would return it because they are not comfortable with flying an unregistered drone over the 250g limit. You don't need a complaint to return a problem, people...
Finding something to do with your flying camera (other than cranking out formulaic video ads for cheapskate/ungrateful estate agencies) will keep you interested in using one of the most amazing technological developments of the early 21st...