I understand your concern. But this is not how stories work in general. There is always the risk of wasting time when you read a little story, watch a movie etc...I apologize if the story wasn't worth your while. I tried my best to put it as elegantly as I can.
News stories work this way, putting the important information at the top. Other styles of writing (e.g. fiction) needn't.
Fiction is designed to catch your attention at the beginning, and make you want to read to the end. News is designed so that you can stop reading at any point, or just read the headline, and have got the basic gist of what's going on.
The attention-grabbing, mysterious headline on a "news" site, however, is a lousy trick in the memetic marketplace, tunneling its way into the host's brain to advantage itself at the cost of the reader.