This is a great intuitive set of models. It also suggests scenarios where a poorly implemented quarantine could make things worse by intensifying contact and increasing spread between those isolated together, and then releasing everyone while still contagious. It drives home that if people are forcibly kept in close quarters for quarantine, its essential to see the full time period through. If resources might eventually wear thin enough that a quarantine may not be sustainable, it's probably better not to do it at all.