If you have trouble with the math mechanic, the fight is forgiving enough in that you dying or messing up won't wipe the raid. Just try your best and if you mess up, it's not a big deal. No reason to change the mechanic (not like it's going to be changed anyways, if anything the next savage raid might have something similar). I don't think SE will ever change a mechanic that has already been playtested enough. I mean if you think this mechanic needs to be changed, then what of the 100 or so savage mechanics that people cannot do, and in there they will wipe your raid. Also the hardest mechanic in the fight has already been nerfed, I don't think they need to nerf more.