No, Unschooling is a subset of Home Education. So is Home Schooling. The distinction is important, since while both count as education, only one is school-at-home.
The rest of the post is rather accurate though, although I would say that with the robotics, the unschooling parent would probably take the kids to a local Radioshack (Or Maplin's, if you're in the UK!) and buy a book on electronics, along with a few bits and bobs (motors, etc), encourage the kid to experiment, and encourage them to join a local engineering group :D
The rest of the post is rather accurate though, although I would say that with the robotics, the unschooling parent would probably take the kids to a local Radioshack (Or Maplin's, if you're in the UK!) and buy a book on electronics, along with a few bits and bobs (motors, etc), encourage the kid to experiment, and encourage them to join a local engineering group :D