I did not update to 3.0.
I am in aviation, so I looked at the restricted airports list in detail. In looking at the list of resticted Category A and Category B airports, the one thing that popped out was the Category B airports (in the US). Included in the category B airports are all airports with an "international " name. There are several airports in the US that are small, but the airport authority (don't like that word) has adopted the name "international" to get special foreign trade zone benefits, and to be able to compete with larger legtimate international airports. Typically, these smaller airports don't get any international flights, even though their airport name includes "international" So what DJI has done is arbitrarily listed all airports that has the word "international" in them.
The Category B list has a restricted fly zone area radius of 0.6 miles. Seems small, but in a small town like where I live, that amount is noteworthy. It cuts out large areas of residential and commercial development, as well as undelveloped lands suitable for flying UAv's such as the Phantom. And the airport here has the word "international" in it, so it is included in the Category B list.
Either a government or governments are bring pressure to bear on DJI, or some buckaroo at DJI came up with this idea during a brain storm session and DJI did a 'knee jerk' reaction without giving it much thought. Like cattle in the slaughterhouse corral, the public just follows along aimlessly.