Theblip - I think you'll find the two are not really connected in a way that actually adds to the point you are making.
If you don't like female commentators and experts, that's fine, and if you don't like Little Mix dancing, that's equally fine, but the link you are drawing between the two is not really valid.
The point of female commentators and experts is to prove a fact - that women can be just as knowledgeable as their male counterparts, and make equally valid points and analysis.
The point about Little Mix is that they are pop stars, and this is the current trend for the way pop stars present themselves on television. It has absolutely nothing whatsoever to do with 'taking the cause of women forward'.
Separating their appearance and routines from the exploitation of women in the real world, is the same as separating the sound of women commentators and experts on previously 'male dominated' sports - it's a matter of education.
That's the link - if you actually want one.