A computer being better than everyone doesn't mean that chess isn't complicated. With that logic, games like CSGO would not be complicated because you could create a bot that headshots everyone at first sight.
Also, there being variance doesn't mean that there is randomness. There is no random element to the game of chess. All the variance comes from human decisions. It's an unsolved game, so there is no way to guarantee a win.
Also, there being variance doesn't mean that there is randomness. There is no random element to the game of chess. All the variance comes from human decisions. It's an unsolved game, so there is no way to guarantee a win.