No one in Malaysia gives a shit bout this deck, seriously, no one takes them seriously. Many of the Malaysian players don't follow the TCG at all and for the few who does, they would think that Tourguide or other TCG exclusives made the deck good. Some people came into the conclusion of Chaos Dragon's domination was due to the TCG format. While others think that the deck dies to Macro Cosmos (a card seen in every side deck aside from Inzektors and Dark World)
My answer to this would be : Inzektors perform horribly if your opponent puts a Macro on the board. But did that stop them from being the number one deck in the META? If so, why would that stop Chaos Dragons from being a power house? Like any sideboard hate, you need to draw into them first, and who says the defending player can't have outs.
Dino-Rabbit is the deck to beat in the TCG, Dino-Rabbit is a deck that could main copies of Macro Cosmos and not feel bad bout it. But the most recent YCS had 2 Chaos Dragons beating 2 Dino-Rabbits in the semi-finals for a Dragon Showdown in the finals. The Rabbits not playing Macro? Highly unlikely.
People here think of Hieratics as the go-to Dragon deck for the format, because Hieratics are one of the most explosive decks available. But, compare to Chaos Dragons, Hieratics are control decks. People say that decks that explode based on mills will not turn out good because there are luck factors involve. Hello, Lightlord was the TOP DECK for 2 formats, and they essentially run on the same engine. Also, Lightlord has 3 Judgments, and milling them means trouble. In Chaos Dragons, you don't care what you mill, your bosses come back anyway.
In one of my earlier post, I've stated that this deck has a bad game-2 and 3. Basically means, you need to win Game-1 to stay in the game. This was based on the fact that this deck dies horribly to Macro Cosmos. While the fact that this deck dies to Macro is ever present, I forgot a very important note. This deck has TONS of back row hate, even in the Asia format. Triple Lyla, Ryko, MSTs and the single Heavy means one-fourth of your deck is back row hate. Your opponent would only have 3 Macro, and the chances of your opponent drawing into them before you have a backrow hate is significantly lower.
I've stated that you would HAVE to win game 1, but after more thinking, this deck would most likely take game 1 anyway. The sheer explosiveness of this deck is unparalleled this format. Without Gustaph Max, Hieratics actually have a much much harder time going for OTK. If anyone has played Dragons, they would tell you, if you resolve Future Fusion, the only reason you lost would be because your opponent has an infinite amount of outs, or your just plain bad. Most Malaysian duelist aren't familiar with this, and a vast majority of them may end up not playing MST on your Future Fusion. Also, most of them don't understand Lightpulsar Dragon.
The fact that you could very well play MST and chain Mirror Force//Torrential Tribute on Pulsar and Red-Eyes not coming back may be Astrophysics to some of the Malaysian duelist. Simply put, aside from the big names and those who hang out with them a lot; most Malaysian duelist are bandwagon hoppers with limited amount of knowledge on rulings. And running a fast pace deck and unconventional deck like this may just make your opponent confused. Think Confuse Ray, they might just end up Hitting Themselves (like playing Torrential Tribute on your Pulsar so you can't deal damage to their Centipede).
Lastly, I've also considered that while Chaos Dragons aren't tough to side against, the fact that most of them think that Chaos Dragons is that deck that plays White Stone of Legend and Blue Eyes would make them side the wrong cards against you. Or rather, they won't know how to side against you to begin with.
I've spend half of this post stating the fact that Malaysian Duelist are of a lower standard. Don't get me wrong, there are a good amount very good duelist here where you wouldn't want to meet in Tournaments like WCQ. But skill gap between Good and Mediocre is very very large and the majority of the people playing this game falls under the latter group. Thats why you've been seeing the same guys topping tournament since forever.
Conclusion of this post would be, Chaos Dragons is a deck that most people aren't expecting, and therefore not prepared. Meaning you should play something like this if you don't want to go into the top tables for Mirror Matches.