If you look at this problem realistically it should be offensively easy for AI. The entire world state is available to you with perfect accuracy at a timescale that is trivial for computers but well beyond human reach. Also, there are clear goals and absolute limits to the functionality of the world.

But the human players quickly adapted and developed new strategies and the bots just weren't able to adapt as quickly. You can see the players recognizing the idea of a training set and trying things the bots probably hadn't seen before to see if they could confuse the bots.

As much as there is a lot if impressive work being done in machine learning I can't help but to be generally a bit skeptical of the whole "AI revolution" and people being replaced en mass. I'm far from an expert but from everything I've seen from machine learning seems like this awesome tool to augment human ability rather than replace it.

I'm not super interested in having a computer doctor but I'd be 100% on board with my doctor having smarter computer.

I think the greatest challenge to date in machine learning is identifying how to use it to create value.