Because this is a play-style that was fine for every alpha before this one, and a play-style that many enjoy, so why shouldn't we expect to continue doing it? Especially when the alternative is such a bore. It is, for example, so necessary for us to play like this that were it made nonviable by any future change, we would all quit the game immediately. I am sure we are not alone in thinking like this. Using infinite mazes and ramps is just not a game I want anything to do with. I would have zero fun with that. It takes zero effort and is zero challenge.
