I was thinking more about the effect a Turkish attack on the autonomous area itself would have on the PKK, and removing the nascent authorities of the area would only serve to remove the prime agency capable of restricting, or at least putting pressure, on the PKK themselves. Besides which, an unstable border with Iraq would mean a porous border with Iraq, which isn't going to be in Turkey's interest. I suspect any move would be aimed more towards appeasing Turkish citizenry than anything else, and of course it would set an example to the autonomous regions of what happens if they fail to control the PKK element. Naturally, it depends on Turkey's handling of any action in the area - if they screw up it could have the opposite effect.