The caveat being that the scope of the game was significantly pared down for the sake of the AI. Specifically the team compositions were pre-determined, meaning the AI only had to understand 10 heroes in two specific arrangements of 5, when there's normally >100* heroes which can be chosen in any permutation, and certain game mechanics were also declared off-limits for the human players because the AI wasn't able to understand them. Beating pros in that subset of the game was an impressive achievement but there was a huge gulf between what they did and doing it in the full version of the game, which they quickly gave up on trying to do after collecting their marketing trophy of beating Dota pros in something resembling Dota.
* I'm not sure exactly how many heroes there were at the time, it was less than the 124 there are today, but it was certainly a lot more than 10.
* I'm not sure exactly how many heroes there were at the time, it was less than the 124 there are today, but it was certainly a lot more than 10.