Rock climbing = personal entertainment. That's why rock climbers don't need to worry about Stockfish. But competitive chess players do have to worry about Stockfish.
Of course the professional competitors don't have to worry about competing against a human that's cheating using a robot; the exoskeleton would be obvious.
But it isn't unimaginable that, in some distant future, nanobots could be inject to infiltrate our muscles and tendons, and then assemble in to fibers that would assimilate with them and look normal from the outside. Competitions are won by incredibly small percentages.