My take is that it will lead to a lack of interest in these games.

Why bother trying to be the "best" (or even good) at a thing, if a robot can outperform you by leaps and bounds?

Because in the tournaments that pay money, you're in person and there are no bots and all of your bot assisted skill falls away.

Were they banned at a live tournament or an online only one? Article isn't clear. Also getting caught got them banned from the sport, much like sports doping today. It makes it a high risk action.