Maybe, but the UN had to try, what other option did they have?...

Maybe, but the UN had to try, what other option did they have? Dammed if you do or don't.
This will now give the coalition justification and a sympathetic ear when the upcoming human tragedy unfolds. The coalition will have a certain amount of time to get the job done before the international community say enough is enough. IMO this UN step actually bought the Coalition some extra time for that needed sympathy.
God bless those poor buggers in the city.