I'm not very much affiliated with SA (I know little of the religion itself although I am part of it), but I do have the feeling that most people that are complaining about it, find themselves on the opposite side of SA. I think it's time to accept that one religion will attempt to dominate a continent (for now). I even applaud it. It's ambitious and it enables enough reasons to go to war for the next two years (at least).
I just hope that when the north has been completely SA'd (actually, it already has), there will be a change that will allow those realms to fight a war closer to their home. No crusades all the way down south.