In the Washington DC area, flights of any kind are and have been for many years very severely controlled. The DC Flight Restriction Zone (the "DC FRZ") is a 30-mile-wide circle in side of which it is illegal to fly any sort of remote control device of any kind at any altitude. So, yes, it sucks to be in the suburbs, seemingly a long way away from the sensitive downtown areas that include the White House, the Capital, Reagan Airport, the CIA campus, and all of those other high-profile places and people ... but, too bad! Federal offense with stiff fines and possible jail time if you're caught. That includes kids with $20 bought-it-at-the-mall 6" pink plastic helicopters playing around in their back yard. Yes, it's ridiculous.
On the other hand, it's a rare week when a trio of big helicopters doing runs like the one between the White House and Camp David don't go thundering over the tree tops of suburban Maryland. You can hear them coming quite a ways out, and if you were prepared, you could easily have a modest quadcopter or more substantial hexa up to over 1000' feet and be at the same altitiude as (or above) Marine One by the time it and its decoy siblings flew directly over your house on the way to a routine presidential golf outing. That's the sort of thing that has had the DoD, Secret Service, HSA, and FAA all uptight. Mind you, a person flying a more or less radar-invisible foam and plastic RC plane could have done that many years ago, too.
And so we have a 700 square mile area where flying a 3-pound DJI quadcopter is very, very illegal, and has been for years. That DJI is updating their GPS-aware flight control firmware to make it impossible to fly their devices in that area is a sign that they don't want their products to be simply banned outright. We are not at the sweet spot of rational rules and implementation on this one, not even close. And of course someone with true mal intent isn't going to be bothered by the rules or the firmware limitations anyway.