It does NOT say video games. It says "games." It says "games" in 2 places on that page.
On kickstarter, the games category includes board games as well as video games.
The kotaku link you put in even says this:
(Note that "games" in this context refers to both video and tabletop games. Kickstarter doesn't separate them.)
Now I have a feeling that the vast majority are indeed video games, but board games are a significant fraction.