Check out the comments on that Video. That is a multi Access path. Besides something that thin I wouldn't not consider a bike path, especially competing with space with walking folk. Though being the extremely life loving individual I am I would use the path just to stay out of the way of ID10Ts like the dude in the video.
That dude really needs to reevaluate his life. I agree some people take up entirely too much space when they are riding bikes and it makes it dangerous for them and the cagers alike. But when people do that I don't flip out; I just pass them.