Did they say that was 1 continuous trick? Looked to me like you could do 1 trick, then as long as you time your editing do next etc as long as your lead in domino's are the same color, they always switched colors.
Pretty sure it wasn't done at 1 time w/ like 20 diff cameras set up all over the place.
I do think they were smart enough to move the location a bit each time because the floor didn't look exact, althou i didn't go and totally examine the floor that seriously.