it does note that it's satire. a lot of drivers in America have reflexive dislike of roundabouts.

this one probably is not good for a DDI because it is also supposed to be a bus interchange for a BRT project, and the buses will stop at the roundabout level.

The majority of drivers don't know the signaling rules for roundabouts so the end result is no one uses signals on them for anything and this you never know what people are going to do next when they are in one.

All in all they end up being rather unpleasant to use through no fault of their own.

Probably an instance where busses need their own level/ramps.