Live reports that don't need to be live

Watching the BBC news and they've got a messed up live report from Hurricane land. The audio is breaking up and not only that there's a loud siren going so you can hardly hear what she's saying. There was absolutely nothing that's she's said that couldn't have been said and recorded 15 or 150 minutes ago, without a siren, and ensured to be a good report, then played back.

They do this often, how many rubbish live broadcasts have we all seen? Why have a live broadcast that they c-ck up when it doesn't need to be live - is having "LIVE" in the corner that important?

Did they think the hurricane was going to come back so wanted to make sure they had a camera rolling?
Maybe someone behind her was going to lift a house up and a pair of red shoes would be there and a witches hat?