I feel like the article leaves out the most interesting part: how does the bot play? How often does it bluff? How often does it slow play? How aggressive is it? How important is position? What percentage of hands does it play? How often does it take the pot with the weaker hand? And for me the most interesting question would be, if it plays against itself, what percentage of hands make it to showdown?
It's pretty surprising to me that limit hold 'em is now solved (even only for heads up), I would have guessed at least another 5-10 years. But still, I think we're a long, long way off from solving no limit hold 'em, which is a much more interesting and popular game anyway.