I can absolutely see that the emergency services cannot give figures/ details of who has died yet. It may take weeks.It is painstaking work to do accurately. Heartbreaking for those waiting.
But I do NOT see why they cant give figures as to who actually lived there / numbers, if they were asked at 3.30? Surely those details have been passed to the emergency services anyway?
And, yes, if any workers, council or not, need to go past 5pm then I think, morally, they should do so.
This could very easily turn into riots. Helping no one. Person upthread who said racists will then turn on 'forrin' mob' was right 
But, anyone can understand the anger and frustration. Surely?
Mind, I spoke to a 'friend' last night whose comments about the community were so appalling I no longer consider him a friend (about their 'failure to help themselves' and 'lack of impetus in rescuing themselves'. I was genuinely horrified that someone could be so lacking in human compassion. But, it happens.