This patient room was never intended for any specific target audience, but you are correct in pointing out that, in our current dysfunctional system, the most likely user group would be the insured population.
Unfortunately, there is no universal healthcare system in this country, and the system you refer to as 'free' is anything but. The overarching goal of our work, and what is alluded to in the article, is to show people that there are different ways for healthcare to be practiced. We are working right now to develop a simulated payment system (to show in the prototype) that informs patients about the cost of procedures and catalogs all supplies that have been used during care to create a level of transparency during the process. TIME just had an article that discusses this problem: http://www.time.com/time/magazine/article/0,9171,2136864,00.html
Our work uses design as a tool to show a new way of thinking, and we have the freedom to do that because we are not tied directly to a healthcare system or forced to abide by current government policy. Hopefully one day we can fix the dysfunctional healthcare beast, this is just our way of approaching the serious problems our current system faces.