Yes I agree. Personally I like my jackets to flair slightly at the waist. That’s a large part of the appeal of the Halfbelt for me. To my eye that creates a very pleasing silhouette.^^
You mean the hem not hugging the hips on the HD Sportster? If so, it's the hourglass cut on those things, done probably so they are more comfortable sitting on a bike. Nature of the beast.