That's quite a definitive statement. I am curious how you know that for sure.
I don't think birth control pills are quite the same as a med used in treatment. It's only a guess but I could see birth control pills allowed on a show of a finite time limit like survivor or N&A..but not for an undefined time limit like this. My guess is also that meds for cholesterol or Blood pressure may not be permitted either, but I dont know for sure. At this point they may make certain concessions for the sake of the show. Esp. with returning contestants where their pool of participants is limited.
I can only assume that all participants must be cleared by their own doctor as well as a production doc. And I'm sure they sign away alot of rights to hold production liable to just about anything, considering the tremendous risks of bear attacks, snake bites, etc.etc etc.
People who face physical challenges often go above and beyond--even to extremes-- to defy what others may see as a limitation. I don't blame them! Apparently flare-ups are part of MS but are not predictable, and not life threatening per se. There is the tap-out option.
This challenge is not for everyone..MS or not, so I don't see the correlation here. We all have different ideas about what it means to "live"