AN SLQ 32 in sufficient numbers ( which we have ) can jam any incoming hostile missile .
Funny you say that because of the large Kh-22M missiles to be carried by the Tu-22M3 in naval combat they pretty much had three main types... active radar homing, passive radar homing, and tactical nuclear with inertial guidance to a coordinate.
The thing is that after any initial attack a carrier group will be using radar to detect threats at max range so it can deal with them so the standard strategy was to launch active radar homing missiles to find the elusive carrier group... of course these missiles also have a home on jam capability so using the SLQ 32 would allow the active radar homing missiles to switch from active radar to passive HOJ guidance. Of course active jammers emit a lot of noise so most Soviet platforms nearby will now know exactly where the emitter or emitters are so an enormous range of weapons will start closing in on the emitter/s.
Unless that vessel or group of vessels want to be totally blind however they will need to turn on a radar or two, to get information to plan their defence... plenty of older Russian antiship missiles were fitted with backup IR guidance systems.
The point is that after the first wave of missiles have hit there is no advantage to emcon and the second wave will likely include ARM equipped missiles too.
For example, the fake signal creation by the Granit? How does it even detected an incoming missile? Is the false signal accurate?
Maybe I have been a slacker on my reading, but I have never even hear of this before.
Granit is three times the weight of Onyx, and was a very capable missile. Think how far computer technology has moved on... today a palm top computer can perform better than a 1970s mainframe.
An incoming missile with active radar homing can be detected from the radar signal coming from its nose. A SARH missile can be "detected" by the change from "scanning" to target marking mode.
The ancient Styx in Soviet service had a back up IR guidance system and it would not be impossible for Granit to have something similar to detect the IR plume of an incoming missile.