The real danger to health-care reform is not that the individual mandate will be struck down by the courts. That'd be a problem, but there are a variety of ways to restructure the individual mandate such that it doesn't penalize anyone for deciding not to do something (which is the core of the conservative's legal argument against the provision). Here's one suggestion from Paul Starr, for instance. The danger is that, in striking down the individual mandate, the court would also strike down the rest of the bill. In fact, that's exactly what the plaintiff has asked Hudson to do.
Hudson pointedly refused.