They succeeded in making a much more believable light saber fight
Time for a rant. Sword "experts" universally have no idea what they're talking about when it comes to lightsaber fights. They have no idea what it weighs, how powerful it is, what type of controls are available. They don't know how the blades interact when they hit each other either. There are clearly differences between the types of sabers as well. They also have no idea how to fight when you have the ability to see into the future and how that works when you're fighting someone who also has that ability. There are a ton of variables that would affect the actual fighting style of "real" lightsaber combat, and there's only one person who knows what they are.
That said, the video is pretty well done, except for the end where the lightsaber is laying across his chest when he's on the ground. Part of the skill of a jedi is making sure the lightsaber never touches you (another reason why Kylo Ren's lightsaber was such a terrible design).
Also, if you're a nerd (which I clearly am based on previous rant), many of those Technology Connections videos are pretty interesting. Some real pratical knowledge in there.