I would not be surprised in the least (actually I would be surprised if it didnt happen) that Ms. Burk spoke to Clinton about the Augusta membership issue and he told her to hold off until she received further instructions.
I have no doubt that Clinton saw his support amoung women as very strong and there was little he could do to damage it. But he knew damn well that his support amoung men was not very strong, and those that did support him did so weakly. He knew that being a golfer (and a big CHEATER) he would get the questions on August membership practices. He could not come out in support of Augusta because it would piss off all the liberal groups that backed him. And he clearly could not come out in opposition to the policy because his very weak support among men would become even weaker.
In short, Ms. Burk was told to sit on it until it could be used effectively in the future.