Those are good, but those are paid advertisements with a budget and production team of who knows what, AND take a lot of time with shooting, post-production, etc; whereas these are done in about a 36 hr period and they have no idea what their topic will be as they have to await the outcome of the games.
Then, they have to agree on a storyline, write the script, obtain the needed props, shoot the scenes, edit, and then get the video posted sometime late Monday.