I am fine with it.. Not my dream bike, who cares? If it makes the owner happy, who am I to comment? it IS a 100% Ducati! Be nice, be gentle even if it is not your favourite , the owner probably put a lot of work into his creation.
I don't find it too offensive. And yes, the builder has put some effort into it. Although I think that seat/tail is Harley flat tracker style(XR??) in origin. .