People will still be at risk of medical bankruptcy even with Obama Care. While Obama Care will help curb the rate at which people become bankrupt from medical expenses, people will still be at risk of medical bankruptcy. Hopefully in the future, there will be enough changes in the medical industry, so people do not go bankrupt.
No, people are still at risk of medical bankruptcy because the Affordable Care Act, also known as "Obamacare", does not make enough provisions to allow for someone to find truly affordable care. Long hospital stays or surgeries are still incredibly expensive, and this cost still allows for many to declare Medical Bankruptcy.