You missed the point!
This technology cannot see what the user sees! What it seems to be doing is analyze how a brain react at seeing certain patterns or colors. Then when seeing another picture it creates a composite picture out of known pictures that match the reaction. Of course it can't recreate the images, but the fact that its recognition is fine enough to do what is shown in the video is astounding! Considering this tech is just being developed it has me hyped on the potential uses down the road!