Interesting, I did watch the video. Always hard to know the full story behind these things.
Medical research and testing is necessary to advance medical science. Without it we would live much less healthy lives today. That research does carry some risk. However great care needs to be taken to minimize risk and always to inform participants in trials of what they are getting and what the known or possible risks are. I know that is sometimes done, but probably not always. And close scrutiny helps.
I did try to look Tony Lin up, but there are too many Tony Lins in the world for me to figure out who he is and what his qualifications are. Doesn't mean there is anything wrong with him, I just can't tell.