User Gravityloss summarised the video pretty well:
We have no idea how to ensure alignment of a super AI. People are spending a lot of money to create a super AI. Super AI is likely to destroy humans as a byproduct of its actions, whatever it will decide to do. Happening to create a super AI that is also a humanity aligned super AI is like creating software randomly and it becoming information secure by accident, very unlikely.
Investors and researchers are mocking people warning of the large scale dangers of AI.