The whole thing with "stroads" is that they allow to seamlessly transition between these modes. You can't have the left turns on a regular road, so you either need multi-level interchanges (that take too much space), or you need to force drivers to make right turns and circle around.

The latter _can_ be a solution for some roads, but it necessarily lengthens the trip and significantly increases its time because you have to make 3 right turns instead of one left turn.