Bronze Age discovery, 3000-year-old community unearthed (in England) ?

So according to CNN, (a featured article today in their website) a bronze age discovery happened in England today. So, I am not sure whether this is a really legit report. So I wanted to ask here. The article shows some wooden sticks that suposedly belong to a bronze age wooden(!) village. But tree branches are organic material and how come they did not decompose?