It's weird, it's weird fashion. That's why the Griso isn't 100% totally convincing. It makes a show of being a mechanical brute, but it's visually a bit like a big toy version of a machine, rather than real mechanics being the soul of the thing – the big can, the big, blocky driveline casings and so on.
In reality it might be better than that. Need to see one. And smell one.
Does nobody think that the engines and of course the so-important cylinders are becoming more artificial looking, going in the direction of looking like they are just there for show? There was a comment a while ago about why old, old Triumphs look better than later old Triumphs – the engine construction.