Yeah, would be better if this just links the video and not a website that has now original content but just describes the video.

Totally clickbait the idea of testing out different lenses is great but in order to see behind the wall he just puts the camera higher around the wall and then makes the picture.

I was personally expecting a breakthrough or a mechanism that is smaller and doesn't go above the object in order to make a picture from the simulated lenses.

The article doesn’t explain why this is interesting. Here’s a different way of putting it:

A classic pinhole camera is a box with a hole in it. The hole is small, so not much light gets in. We replace it with a lens that acts in effectively the same way, but lets in more light. The pinhole is inside the camera, and there is an obstacle in front of the subject, so the camera can’t see it. The fun thing here, is that this camera has a pinhole _outside_ the camera, so the pinhole can be positioned on the other side of the obstacle, and therefore take a picture of the subject.