Rather than being put on a bus, Molly, Micah, Monica, Maya, and all those other characters we don't see enough of have not been put on a bus. They're the Deus ex Machina; they're the ones that are going to save the world, because everyone else is too busy running circles around each other to even try.
In the virus timeline that never happened, Claire ended up making a living selling healthy organs to those that could afford them. What? She grew them right back. No big deal.