The ban is to be welcomed.
The decission however, might be more due to the fact that the weapon itself isn't really suitable anymore to modern warfare. Cluster bombs need to be deployed from a low level pass making the aircraft very vunerable to enemy attack. The RAFs experience in Iraq has probably also influenced the decission, as its useage has proven ineffective.
Most bombing these days is done from high altitude and is usually laser guided for better accuracy. The Israelis used cluster bombs recently in Lebanon resulting in many civilian casualites, but they were aiming largely at sitting duck targets that were poorly defended.