It doesn't have to be "dark" to be McQueen, he had showcased a huge range of complex tailoring skills for coats, jackets, shirts, suits, etc., in a variety of materials, tartan, wool, cotton, leather, etc. not just BIG ball gowns in chiffon frou frou, gold, silver, beads, pailletes, beads, etc. He had always used his impeccable Saville Row skills to deliver on his wilder, edgier goth/punk dramatic sensibility - he would be offended to be a "wedding dress" couturier. 
His last great collection for me was the "Isabella Blow" tribute. It got too costume/Daphne Guinness for me after.
It seems Sarah Burton's more of an assistant in helping him to refine the details, to add couture touches and finishes to his broader vision. She should have her own "Vera Wang" or "Marchessa" like label, since she has found a lot of success with this sort of elaborate confectionery gowns with a tight bodice and skirts the size of small apartments. Adding masks or scary looking hats doesn't make it any "edgier".
This, however, isn't "McQueen". Surely it isn't difficult to find a young designer with a wide range of skills and a deeper, more expansive vision. A Ricardo Tisci type comes to mind.
BTW, what a beautiful set, effective without the expensive, over the top "show" stage like Chanel or LV.