I think we should refer to it as a TFR or a temporary flight restriction. They don't last forever and drone flight in the covered area is restricted, no necessarily prohibited. To me, a No-Fly-Zone is over a military base or over POTUS as popular examples where there is no way a drone is ever allowed to fly there under any circumstances. Your DJI drone should stop you from flying in a NFZ but not necessarily in a TFR. These are my own personal definitions that help guide my own drone flying and ymmv and they may or may not line up with the law.
What this guy did, he flew in a TFR and because he flew over the field, the game was stopped. However, if he flew in the Best Buy parking lot just minutes after he came out of Best Buy and that store was located inside the TFR but still over a mile away from the stadium, technically he could have still been arrested and charged.