A good question repeated by Tukhachevskii:
People need to ask as to why hasn’t ISIS blown up any Ottoman tombs anywhere in Syria and Iraq while they destroyed everyone else’s who wasn’t Ottoman?
The cited source refers to such tombs, but are there any I ask?

On a quick search I found two other mosques do have tombs, in Deir ez-Zor now held by ISIS and another method has been used:
The rooms that contain the tombs have been filled with cement
Link:http://www.worldbulletin.net/haber/1...hreat-in-syria

As Turkey regards the Suleyman Shah tomb as its own national territory and not another tombs you have an answer. The other Ottoman era tombs are not Turkish territory.