No, there's no joke. Briefly at 1:53. Looks more like JPL (is the P for Polish?). Matt is famous for dancing silly all around the world, uniting people (and robots). Not as catchy as his 2012 video, second, but no bots.
"When you make a thing, a thing that is new, it is so complicated making it that it is bound to be ugly. But those that make it after you, they don’t have to worry about making it. And they can make it pretty, and so everybody can like it when others make it after you."
- Pablo Picasso