"Let's start with Katrina, Ivan and Flight 427 to name a few."
OK, let's start with Hurricanes Katrina and Ivan. Both events had several days of advance warning. All media reported news and progress reports on the approach of the two hurricanes. No one can honestly say that either of those two events should have taken anyone by surprise.
As for flight 427, there was no advance warning possible by any media. It happened. Then it was over. Those people who needed to know, such as next-of-kin of victims were most properly notified through channels other than radio news bulletins. Anyone on the ground who might have been affected, such as emergency response teams, would also be notified by radio. But not by broadcast radio, rather by two-way private channel radio.
Go back to the title of this thread, and the topic at hand. This thread is about the fact that people on the Bob O'Connor death watch didn't get instant notification that he died via the radio. And that Steeler fans didn't find out until the next day the Ben Rothlisberger had his appendix out. To a news junkie, maybe getting that information a few hours sooner is a big deal. But in the larger scheme of things, the fact that those people who listened to the radio didn't find out those two things right away isn't going to have a serious negative impact on anyone's life.
"Emergency communication during a time of true emergency is a critical use of the spectrum."
I offer no argument there. But in this thread, I have seen very few examples of bona-fide "emergencies" about which the public needed to know right this very minute in order to take appropriate action. This thread isn't about such emergencies, it's about getting what newspaper people used to call "scoops" on the air in a hurry.
"I am specifically thinking of the superhuman effort made by Clear Channel and Entercom in the wake of Hurricane Katrina, which was a bona fide emergency situation."
Exactly! After an event, when dealing with the emergency aftermath, radio broadcasters do reallocate resources in an appropriate manner to cope with the aftermath. That has nothing to do with keeping someone on perpetual standby to report news bulletins that are not bona-fide emergencies, such as the mayor finally dying or the quarterback having his appendix out.