Any large data set can be subject to statistical manipulation. Because somebody (or in this case, some agent) has to make a decision somewhere about what data is important vs irrelevant. That means an unavoidable value judgement, and all value judgments contain within them a degree of bias.
AI is better at showing people just how complex our world really is and how little we understand our own consciousness than it is at solving any problem it's ever been set to solving, and since you've dealt with major AI, you know that's really saying something.