[familyop]

"Of course they would. They are Sunni. Iranians are Shia. And/or the fact that Iranians aren't Arab by ethnicity, also encourages this."

That applies to many in many cases. Those who are offering the airspace are also very motivated to keep oil shipping routes clear and have new, short-range (although effective) ABM systems to secure such a bold decision (recent public news).

[CarrotAndStick]

You have a point there. They wouldn't be getting those systems from Israel now, would they? :^)