SA becoming powerless might not be a bad thing actually. It opens up more room for other religions. SA was probably the most unique religion ever created in BM but that doesn't mean there aren't anything going to be like that in the future.
I think SA played its role and did well. Time for it to fade away and something else to revitalize Dwilight. 
There are five other continents with room for a religion like SA yet I don't see anything close to SA. And by like SA, I mean a religion that actually matters. In Dwilight SA is something I hear mentioned during decision making frequently, because it matters. No where else does religion really matter like it does in Dwilight and SA dying off isn't going to make it happen for another religion.
