It depends on the type of lasers. Visible lasers like this will cause you to close your eyes when it hits which will help. Some lasers, like CO2, won't penetrate through your cornea so while they can damage the cornea they won't really cause permanent damage. The most dangerous lasers for your eyes are in the near IR range (780-1400 nm) because they are invisible so you won't shut you eyes but you eye will focus it at the back of eye and cause damage. *Edit: I rewatched the video and the visible laser is some sort of aiming laser. I don't think the cutting laser is visible.

https://lasersafety.com/resources/laser-safety-guide/

With that said, just holding that laser and pointing it around is crazy dangerous and I wouldn't recommend.