I think it would be better if, instead of circles, the pop-sockets were octagons for little flat edges depending on the angle you were using to rest the device.
And the video? The "joke" never ended and got down to details about the product.
What details do you need? Pretty much everything I want to know about the case can be learned by looking at a picture of it, or seeing the various uses in the video.
The phone itself has two corners of contact. The circle provides the third. It's like a tripod. I don't think having a fourth point of contact less than an inch away from the other would really add any noticeable stability.
Plus, by having a rounded edge on the table, it will compress a little bit, giving a very solid connection with the table. If it was a flat edge, you might get less solid contact, especially if it warps at all with use.
And the video? The "joke" never ended and got down to details about the product.