If I'm not mistaken most states have high risk pool insurance programs for pre-x conditions. They are expensive but I am also pretty sure most states have Medicaid programs for people that can't afford those.
I hate to sound unfeeling and uncaring but why should people carry health insurance all their lives, even when healthy, but someone can get insurance only when needed. That's like calling after a home has burned down and getting insurance when they never carried it before. Insurance doesn't work that way.
I realize that pre-x was one of the selling points of OCare. But that provision will crater any insurance company. But that was the goal, imho.