Yeah well it has everything but the kitchen sink. We do include our customers suggestions so there is that whole image protection system where you can use watermark.php to serve images you can disable right click you can move the data directory below the webroot etc. Now obviously as you found out not everything is going to work well with google persay altough I dont work for google so I cant say why. The page if you use
SEO feature should have unique titles meta data etc so I dont see why how the displayed image is shown would make that much of a difference but anyway.