Does it matter if people cheat in chess, sports, etc? The point of these kinds of games is that your own skill matters and the fun is in improving yourself over time, against people that compete under the (almost) same conditions. Why would I want to compete against people that artificially improve their own abilities? It does not matter if they exceed human capabilities or not.

Mouse movements server side are not precise, they're sampled at a low-ish rate. There are ML solutions available but unclear if they're effective, based on how many cheaters there they don't see to be, yet. Then there's the question of false positives, seems like it cannot be a perfect system. Detecting humanness of players is unlikely to be precise enough, which is very different from detecting cheating software where you essentially catch the cheater red handed. This still has false positives but is typically reversed as the banned group report it, how can you do that when the AI/software detects that you're not human?

And to reiterate, it does not matter if they exceed human ability or not, the artificial increase of your ability is against the competitive spirit of these games. Might as well play against bots if everyone is cheating.