Technically impressive but I fail to see a good use case for it that's not related to propaganda or scam and the website doesn't seem to list one either.
Just a few off the top of my head:
Movies and TV:
- As an alternative to motion capture for animation
- As an alternative to existing de-aging CGI when you want to flash back to a younger version of a character (especially for cases where newer sequels are being made for much older movies)
- As an easy way to get some additional footage if an actor no longer looks the part
- Conduct job interviews were interviewees faces are mapped to the faces of a few pre-defined images, to reduce a major source of implicit bias in interviewing
- Get some footage of yourself when you're looking your best, with great lighting, and use that rather than being off-camera if you're joining a meeting when you don't look great
- Create virtual spokespeople to represent your company in marketing, and allow that person to be played by different actors
- An alternative to blurred or blocked out faces for people giving interviews or whistle blowing
- Allow people to testify in court (virtually) without revealing their identity and risking retaliation