At the beginning of the interview, yes, he talked about the stock market being rigged. However that was a lead up to a bigger conversation where he made a point

At the beginning of the interview, yes, he talked about the stock market being rigged. However that was a lead up to a bigger conversation where he made a point that he prefers to invest in startups because it's less risky (see marks 2:35 mark and 3:20). Whether you agree with him or not, he said directly that startups are safer than stocks.