I know there a big row about the comedienne who 'chose' a male partner but Strictly really could make an effort - maybe something along the lines of - " If you do have a same sex partner we'll make sure that you aren't some novelty act, we have access to some of the best choreographers & musical theatre people and creative people and it'll be awesome. Not just a version of the 'straight' routines.''
I've seen boys dance with boys and girls dance with girls and it really shouldn't be a big deal...