Because this song is astonishingly bad. Until this came out, I believed that the most annoying song of 2005 was surely either James Blunt or that absurd Franz Ferdinand thing, but this is a definate contender.
As the musical equivalent of a feel-good film starring Tom Hanks or Hugh Grant, I had thought that this kind of thing died out many, many years ago. The notion of a supposedly 'indie' song that is in fact blatant pop rubbish is so much old hat that I'd always thought that noone would even bother attempting to market it anymore.
The only kind of person who could ever enjoy this kind of dross is someone who rejects Maroon 5 as being too high brow. It is so derivative that anyone who has actually listened to any music at all over the last 10 years will suffer an unpleasant bout of deja vu for the entire 4 minute duration of the song. Please, save yourself. The only reason to even play someone this song would be if they have been in a coma since the mid 90s, and they are eager to have every shabby 'innovation' in bad pop music summed up to them in as short a time as possible.