They set the bar for low quality, artificially high impact news as soon as they began reporting, what, 20 years ago now?
News is ephemeral...who can say what's big news at any one time for all but the biggest stories. By it's nature it's subjective. Ally this with 24 hour broadcasting and suddenly breaking news becomes 'Southend Utd manager has resigned/been sacked...' or 'there's been a tornado in Wisconsin'.
These stories may be important to you if you come from Stockport or Wisconsin but that hardly justifies breaking news status and to be fair Wisconsin is huge and Southend isn'y particularly well supported so it may not even be big news throughout either city/state!
Sky always seem to blow up stories out of all proportion, especially if it is celebrity news. They ask ridiculous questions to try and get the interviewee to put there foot in it. They also tend to drag a story out for far too long.