The trigger warning is because the topic can be emotionally heavy for autistics since it talks about the social abuse autistics endure and how we react to it by masking. The guy has an apparent justifiably angry tone throughout the video. Otherwise, I think it is fine and there are no sensory issues to worry about.
For those that downvoted, I would like to know why. Why did you think that it should not be seen by others?
I saw part of this video and I can very easily imagine that it would allow narcissists to seek out people they can exploit. It’s also annoying to other people. Excessive “people pleasing” can come across as desperate or annoying.