How? Both of those are conventional weapons.
Who told you that nuclear response is allowed only for nuclear strike? During the carribean crisis US wanted to destroy soviet nuclear rockets with conventional weapons. And if the plan started these rockets wouldn't wait until the americans hit with their nuclear bombs somewhere near.
The jamming of signal allows to paralyse and disorganise the troops. In conditions when the troops don't have the orders to open fire they are exposed to propaganda and civil pressure. Multi-launch rocket system can only strike to kill, which is an act of war and brings the strike back. Then follows the strike back with something heavier, and heavier strike back and? And nuclear war as it was said.
So you are the head of the KGB, pleased to met ya.
Did anyone speak of the psychiatrists in the thread? It's hightime!