As Graslu said, spawning in a tower and then having to travel across the long catwalk to the rest of the map was more or less guaranteed to get you killed. So if you wanted to play in the middle of the map and not just sit around trying to shoot people from the side, you were out of luck.
Of course the sniping is still something the map is known for, so we figured it was best to keep that part of the map accessible but remove all the spawns from it. Sniping from the towers is actually much more effective than it once was, because people aren't constantly expecting to be shot from there. You have to put in some effort into actually getting to a tower now, but that's part of the fun!
