Looks like TU65 was intended to be a bug fix update, and they just threw in a Mash-Up pack, and an optimization to Beacons. I don't know that they're "trolling" with the update, but they likely will have another bug fix update before Update Aquatic, since most people can't even play the game on 360 without the framerate dropping to unplayable levels. That's why I've not updated since they introduced Minigames (my last update was around TU51), because even back then, my 360 version was starting to struggle with framerate drops in the Jungle and around areas with tons of light sources.
http://www.youtube.com/user/PSUTerra