your reference is incomplete
Unfortunately your references are totally incomplete as stated on the refereed table. Which means they therefore are of no significance in your post.
To be honest the Google set up is a very expensive setup for what it is but is probably an asset to the inarticulate and the infantile who have no savvy, but to the masses it is of no significance at all and will fade away eventually once the journalistic attempts to authenticate its feasibility like the article here are filed in the recycle bin for good.