almost more tragic that two ten year olds have done this than the original story
Not exactly sure of the exact details of the original story, but the hoax nature of call would suggest why nothing was actioned. There are a number of monitoring systems in place to protect and aid the public, hence you do not hear of when 'things go wrong'. This story was much ado about nothing and a journalistic license creating a story.
I'm always eager to slag off journos, but I think you are wrong here.
The police and ambulance service called the press conference.
If they suspected a hoax, they wouldn't have called it, would they?