Look, I just think we need to stop coddling those hedonistic roundabout hogs who get into the inner lane and circle for hours, wasting valuable capacity.
It doesn't really solve the problem of having a road junction - that's still in the center and cars even come at worse angles than before- it just adds fluff around it.
On the other hand, it would probably turn into a tourist attraction and unique experience.
The joke is that you have to lane-shift to get out, the way you have to in most large roundabouts already.
Something people not used to roundabouts seem afraid to do, hence this is a design that "doesn't coddle them" because if they don't lane-shift, they end up in the middle.