Heisenberg007
Gold Journalism
Not at all. It's in-engine, which pretty confirms that this is not "real gameplay footage" as was advertised.What the developer is describing is virtually every example of a vertical slice shown in a gameplay reveal of a modern game. They're always put together with shoe string and duct tape and work just well enough to be shown off in a very controlled way.
So yes, it being "fake" was debunked. Unless you consider virtually every gameplay reveal/vertical slice fake. It wasn't some CGI trailer pretending to be Perfect Dark.

They advertised it as:
- Gameplay reveal (which it obviously wasn't)
- in-game footage (which, as the dev confirmed, it was not. It was in-engine).