Many of the legs and desktops for Ikea desks are interchangeable. So it maybe that the video just features the corner style. In fact within the Bekant line, I see quite a variety of desktops. Since Ikea has pulled the motorized legs off of the site, it is hard to say if they are compatible with any/all of the tops.

http://www.ikea.com/us/en/catalog/categories/departments/wor...