Navy jamming effort has most always been concentrated on air to air combat to neutralize incoming hostile fighters with no capability against missile threats.
Surface jamming has to wait until the threat is over the visual horizon, too close for comfort at multiple mach closing velocity.
From what I remember of the EA6 pods, no reason they could not be reconfigured to the surface missile jamming mission. Just getting the thumb out of the USN to do it would be the problem.
Getting them onto the threat axis to do much good would be a problem as well, but they knew how to do that with the old Russian Backfire ASM threat a long time ago.
Could we have ships that launch drones with jammer pods for longer range?