Sure it ain't the rider? While brakes have been a bit touchy for some, most aren't having the issues that you are...
I had a lot more luck with my 2008. I had one rotor changed at 15,000 miles. And at 44,000 miles they were still good. Then I totaled it.
I still run my 2010. I had both rotors changed out at 38,000 miles. And at 48,000 miles on it right now it feels good.
Both of those bikes made it past 10,000 miles on the original Bridgestones. My 2011 only made it just over 5,000 miles. I am one of the only owners that have come close to 17,000 miles on a set of PR2s. I think Brian has done this as well. I rode all 3 bikes the same. I simply use them for commuting. 90% highway riding. I may have ridden the 2008 the hardest since it was clearly the fastest color.
Overall the rotor design for these bikes is horrible. If you take a good look around you'll see that a lot of owners have changed the rotors to EBC, and they did that at their expense. Kawasaki should be replacing them for the owners. Especially if they are under warranty.