Maybe people are complacent. For the better part of five years, I had little interest in following the futures. Once the Fed enacted ZIRP (zero interest rate policy), we just had to sit and wait. Former Chair Bernanke erred on the side of conservatism and Chair Yellen does, too. She will wait as long as possible to raise rates until two objectives are met: price stability and full employment, their two mandates from Congress.
When you take a look at the Fed Funds Futures chart, the market indicates a 25bps rate hike coming by December, and a second rate hike by April 2016. Perhaps a smaller hike could come by September, around 10bps (which is fully priced in).