Some of the Mavic / drone pilots in this forum are FAA part 107 UAS pilots. me for one. I think DJI recognize that, and even through, the software tells you that you are in NFZ, I think it does allow you a way or to fly your drone. Because depends on the air space, zone and the height of the protected airspace, legally a FAA Part 107 pilot can still fly. But you still have to accept responsible for your actions. Thats why it is so important to study the air space and take the test, especially if you are going to be flying drones. The pilot also depending on the PZ must notify the airport, before take off. i know i have not cover all of the senarios in this small message. But I am only trying to summarize an answer to your question for you.