During Desert Storm Delta Force and SAS teams behind the lines are well-known to have fired at SCUD missiles from long distances. The bullets ruptured fuel tanks and other vital systems. Most times, the Iraqis didnt even know there had been a shot.
When the scuds were fired, the leaks caused catastrophic failures, which resulted in explosions, Sometimes on the launchers, other times soon after the missiles liften off.
I have read the same reports. It still makes no sense to me to risk the lives of the operators on this kind of mission. We have other assets which do the same job, with less risk to our soldiers. Airborne laser laboratory for one. This article is admittedly complete speculation without specific factual basis from the first sentence of the article.