They apparently did go off, but they missed. Obviously the forces have not revealed the location of the target.
I doubt they missed.
I have my theory which seems quite plausible.
IAF hit the targets. Message sent and received.
PAF released the weapons at the points they wanted, message sent (to the larger audience in their home) and received.
Now both sides are grandstanding to the public while giving PM IK Niazi time to walk the talk. And the present situation will continue to ensure Pakistan does undertake the steps it has promised to. Otherwise, escalation is with India now.