The problem with Anantaboga is he is generally tanked against the wall and kept facing in that direction so tail swipe doesn't cover the statues since getting him to the wall is quite a long pull its very easy for any ranged dps to pull enmity off the tank. Furthermore once he is turned one way he becomes very difficult to move so that he is facing the correct way again. Worst possible thing that can happen is if he is turned at an angle that while you are standing behind statues to avoid Imminent Catastrophe he tail swipes you all.