My feeling, Mrs.peacock, was that the bodies were simply incinerated in mid-air. Otherwise, over the decades (?) that the city was in operation, it would seem that the myth of Carousel would no longer hold for the populace, if pieces of the bodies were simply falling to the ground with each ceremony, with the "street-sweeper" guys coming in to clean it up every time, in full view of everyone.

It wouldn't take long for the spectators to do a little "back-of-the-envelope" math and figure out that no one, in fact, was being Renewed.

Just my opinion:)