While Iron Dome works by calculating the trjectoriy of incoming missiles and mortars, it 's calculations can be viewed in reverse to determine with near certainty where the launch point is/was located. This will allow for extraodinarily accurate retaliatory strikes to the exact spot of the launcher minimising 'civilian' casualties in Hamas and jihadist held areas. This is the most likely reason that Hamas is crying for a 'ceasefire'. They know they will lose a lot of 'non-civilians' when Israel starts using the Iron Dome launch site information against her enemies. In the words of the Terminator: Hasta la vista!
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from the article: Israel deploys Iron Dome missile defense system for first time