Q: Wouldon’t surface to air missile activity is the area be sufficient reason to issue the NOTAM....?
No, a NOTAM is very serious business that covers the entire theater and stays in place for weeks and months.
There has been no threat to commercial aviation so far as the Iranians are careful with aircraft that have their transponders on.
We chose not to turn on the drone’s transponder while it flew less than a mile from Iran’s claimed airspace that we are well aware of.
So, some can claim that Iran was baited into a trigger-happy tactical airspace.