They still had the same "Getting noticed used to be the end of game, here it's the beginning" slogan even with the old build, which I hate. You can't call it a stealth game, if not getting noticed isn't the meat of the game. Still, you can tell there were plenty of subtle distractions available from stealing the phone to luring guards. It's just the way of this market to show off all the action bits. We don't know much of what could have been.
Talking about Bourne, that old build would have been way more like Bourne. Walk out in the crowds constantly observing around, doing quick evasive manouvers, cause distractions and when it hits the fan; hand-to-hand combat is your number one method. And all the small stuff like blocking a door with a chair, I can just imagine the intensity of guard trying the handle and starting to bash the door as Sam is trying to hack a computer. Way better line of thinking than the current "Who should I kill first? How to take everyone out without giving them a chance to react?"
I can easily see Jade promoting hobo-Sam, because it's so close to Assassin's Creed in certain ways.