Quick and easy solution for all of the people who still want to Za Warudo, just make it an augment. Problem solved.
I'm not sure why people think the change to Limbo would be OP without the duration nerf. Enemies inside the rift are frozen and can't fire anyways, so nothing changes there. Bosses can still move in the rift but would be able to fire now, that's a small nerf right there. We could already kill things frozen in the rift super fast, it was just annoying as **** for anyone not Limbo. The duration nerf was not needed at all.