We have people in Australia that are eligible for an OBE (Order of British Empire) although Australia is no longer a part of the Commonwealth anymore but we still seem to get their award systems from the Queen. And every four years we still are involved in the commonwealth games.
All joking aside I think these awards are very appropriate recognition. Not just of outstanding accomplishment, but of these dancer's roles in continuing the historical British role in establishing ballroom dancing with ongoing leadership into the present day. A wonderful example of empire-by-leadership if you will.