Kog'maw is broken to the colorblind

Kog'maw's ult is indicated by a thin red line. Given that most games occur on maps with green or blue backgrounds, it becomes very difficult for those with red-green colorblindness to determine where kog'maw's ult is casted. The only hope is that the enemy kog'maw selects the battlecast skin so there is a large square indicator on the ground. If this does not occur, there is simply no counterplay. I was left guessing where the ult would land (good thing the kog'maw player was bronze or something).