See my comment above
It's not shuffling if the deck is in anyway set up to be in a kind of pattern. It should be all random, like the oter video's
you cheated: the deck was in order at the beginning, then you cut the deck exactly between two suits and "shuffled" so that the order of each suit doesn't change.
Then all you had to do was sort by suit and you were done.
DE (wait for it....) NIED!!!