I've got 32000 miles on my '07 110" and I use 1 quart every 800 miles! Yeah, I'm upset! The service manager at my local dealership told me the exact same thing: 1 qt / 1000 miles. I am next on the list to have the "enhancement" done and we're going to discuss this at that time.
OK, the maximum useage considered "normal" by H-D is 1000 miles per quart, and your bike only gets 800 miles per quart. No debate needed, it's worse than Harley's own BS standard and therefore needs to be fixed under warranty.
When they do the "enhancement", you may find that the new head assemblies fix the problem. I understand they come with all the parts already installed, including new valve stem oil seals. When they pull the jugs they really should also do the rings with 32k on the clock, but I'm sure H-D would say that is your responsibility. If they refuse to do it, you definitely should consider doing it yourself.
Jerry