It seems to be, yes. I would have preferred more control over the results myself but its not possible. Initially I expected to be using the google search API in php so the JS was a suprise. There is a way to integrate the Coop search into the AJAX API but it seemed a bit too much effort. The results are displayed using the following code, there is little option to customise.
I guess that way they can harvest all the client data rather than being kept i the dark by server side methods.