Then what would have prompted the ceasefire in the first place?
Whatever leverage the Americans had, they still do. What changed is that there's a CF in place that they can hound India on. GoI can too take shelter behind it saying Terrorists, rogue faction and not PA that signed ceasefire etc.
What Pakistanis and being Pakistanis, we are forgetting that GoI had just sold out their dead a few hours ago. While pakistan must be destroyed, it must not be forgotten that our government would throw us under the bus.