Why not split away the controversy section?
Such a split would certainly probably reduce the amount of heated discussion. The same would be the case if we created a separate page Religious views about Mother Teresa. The different communities — secular and religious — (again and again split the world in two opposite parts…) would work on their respective pages, and not get much in each other’s way. It is however highly problematic in NPOV terms to split articles according to the emotional impact of the information contained therein, or according to the communitiies which are primarily interested in that information.