When you have literally millions of people whose livelihood depends on gaming algorithms, or getting past content filters, then some highly intelligent and motivated individuals are going to get through, that's a fact of life.
When someone figures out how to train their robots better than Google, then Google will have some competition, but they seem to be about a decade ahead of everyone else, and only accelerating relative to the rest of the field, so I'm doubtful that anyone is going to catch up any time soon.