Shawn has some worry about peoples expectations of what the test is. Basically he wants to stress that this is purely a stress test, and way pre-alpha. Basically don't expect to play anything even remotely like a playable game, we're there to break stuff. He's concerned a bunch of people with overly high expectations will get pissy, and trash the game. I can see the click bait now.
Video: Dude is so chill, and his random train of thought commentary takes a while to get to his point, but it's there. p.s. The city looks nice. Lighting ftw.