Just some thoughts from single player:
This is an obvious and easy defense position:
For those who haven't seen the map, there are lava pits to the left and right of that one staircase leading to the flag. So as a defender, every attacker coming towards you is in plain view for a while before they get to the flag platform.
Attacker pov:
That one staircase leading to the platform, with defenders positioned above you, is one of two ways to get to the flag. The other is this one:
Very long spoke room hallway, takes forever to cross, can see people coming from miles way. For people who haven't seen the map, this leads to mid, not the other base. I realize that no one would take the whole path directly, but even still, it's a huge and open room- seems mostly useless as an alternate route to/from mid.
The positions in base on this map are just very unfavorable for attackers, and it's still huge. Bouncers and boots help speed up getting into and out of base, but the spoke room is a totally nonviable route. In league play, this would be a pain in the ass every time you get shot in the back. DS was already on the edge of getting cut last season, and while it survived, I can't see this becoming even as good as DS without shrinking it more.