1. Phil Laak is not one of the best poker players. Not even top 100. The fact that you think he is shows how little you know about poker. Also, I don't even know who Ali Esmali is.
2. The game (which I think was No Limit Hold'em) played was the simplest form of poker for a machine. Even if one became better at this than humans (which probably is possible in the not too distant future) it will be far from beating a 2-7 Triple Draw player.
3. Figuring out odds is trivial, but virtually useless. Figuring out odds as well as a human, who has the ability to put his opponent on a range of holdings, is not.
4. No poker bot ever made could come anywhere close to me in an 8 man, limit hold'em match, and there are far better players than me.
5. I don't know if chess has had more man hours dedicated to it. It probably has. But Polaris has been worked on for 26 years. That's certainly not insignificant. Phil Laak has probably been playing for 10 or so.
6. I'm a mediocre programmer at best but could easily write a chess program that, with infinite processing power, would be perfect. (I'm not sure if it would be unbeatable, as it is possible that with perfect play one side will always win.) I could not do that with poker.
7. Chess may be harder to learn for a human (though even there I'm not sure) but that doesn't mean it is also harder for a machine. Calculating the 18th power of 2 is harder for a human than picking out an apple from a group of pictures. Not the same for my PC.