That’s because it was ANY result that was designed to occur by shuffling the cards, there was NO specific result that was supposed to occur, so only a random one did come about.
Suppose you shuffle those 10,000 decks and predict beforehand that the first 10,000 cards dealt will be all the aces of spades from all the decks and then proceed to deal all aces of spades for the first 10,000 rounds. You wouldn’t claim that was just a stroke of luck that was just as possible as any other dealt set of cards, would you?
Just any random order of cards being dealt is not surprising precisely because random is what we would expect in that situation. However, 10,000 aces of spades is not random, that is why it is not dismissed as “just any other sequence.” It isn’t random, it is highly specified because it follows a specific order that is anything but random.
DNA and RNA code is not random because random would be highly dysfunctional. For the code to function it must be highly specified, like dealing 10,000 aces of spades in a row, which makes all the difference.
Clearly you didn’t understand what Dembski was getting at, if you had bothered to read him at all.
By the way, the fact that you calculated the chance outcome in your example to be 1/(10000!) shows you don’t understand probability calculation. Each deck has 52 cards and if, by “flip them,” you mean flip one card at a time, that would be the terms under which probability is calculated. If the cards are turned up one at a time, effectively, you would have a 1/52 chance of guessing correctly at each turn assuming the 10,000 decks were shuffled to sufficiently randomize all the cards. It gets more complicated if the goal is predicting the order of cards turned up rather than just what each card will be in isolation, but 1/10,000 isn’t accurate to describe either scenario.