“And this drone did not have a self destruct system because...?”
My thoughts exactly. I’m thinking it very, well may have one, but Bozo is too scared to use it.
Also thinking this could have been an inside job. Someone landed it FOR Iran either by taking control from the inside, or by providing technical information enabling them to overtake the craft and land it themselves.
Hell, there isn’t a scratch on the thing!
Shame the drone is not covered with deadly chemicals or nasty diseases.
Maybe it has a homing beacon?
Then again Mr. SCOAMF is in-charge so you're probably right.