While I was on MAOTs, I saw a similar thing on an exercise. For the life of me I can't remember if it was New Zealand Farm or Otterburn, but the AAC turned up en masse, 20-30 cabs, line abreast like the video. Quite impressive.
But (and I am saying this as a soldier), it would have been more impressive if the RAF had done the same thing with Wokkas and Pumas!