Sick and tired of fanboys always referencing fake gameplay videos to hype games. The above video is pretty damning and confirmed that such gameplay videos / developer walkthroughs are nothing more than elaborate smoke & mirror CGI scripted videos posing as actual gameplay. This con is used by other games such as Prey 2, Bioshock Infinite, and Tomb Raider as well.
Here's the original fake gameplay walkthrough where the President of Gearbox kept lying through his teeth:
Randy Pitchfork: "you're gonna see what the game actually looks like ... not just screenshots but the actual gameplay."