It's a tech demo marketing presentation with a jumping car in it, not a flying one. It does look pretty cool though. Let's first wait and see if/when this will even be available and not just a marketing stunt.
This is not some suden demo, this is something they've promised and talked of along time ago and has been in development the whole time.
And Tesla is all about manufacturing so mistaking this for some "prototype-only" device is misled.
What people mean by "flying cars" is mass production. Ford Model T.