Unfortunately you are also witness to the problems with such an approach.
first, you need a powerful backer in case of KSA.. where you may carry out whatever you wish without the world being able to say much or interfere since you are the darling of the worlds most powerful nation.
Or in the case of Saddam, we are all aware of the American response to that. In our case it will be interpreted as another genocide against particular ethnicity and the vultures are circling. To be effective ,we cant use scorched earth strategies since the Lal Masjid episode is witness to those going completely wrong. After all, until the SSG commander was killed it was all relatively calm.. once that happened.. the soldiers wanted blood. Unfortunately in that mood, they did not care for ensuring that all non-combatants made it out. That is understandable from a Soldiers PoV, but not from the rest of the country and more importantly.. not from the PoV of Media "commencrap-ers" and religious nutjobs. Even today, there are posters and pamphlets plastered in melody market and all over the country that exemplify Lal Masjid as the new Karbala and Abdul Rashid Ghazi equivalent to Shah-e-Shuhada Imam Hussain.
In essence, such tactics can only be undertaken when the entire national fabric is still intact. Turkey has tried similar methods with the Kurds but even they need to play carrot and stick.