21K miles in 4 months, and from one coast to another on your own, that's a serious bit of riding. And if you are going to do it all on the highway at relatively slow speeds then why not go for the obvious US bike to blend in. No, all in all I applaud the guy. Harley's in the UK may be worthy of asmile, but not over there so much.
Not everyone owns a GS with knobblies .......if you ride two wheels of any sort you are OK in my book.