This is not another "NERF ROA" post. ROA is a ball group set that is useful against players who think rushing into groups is a good idea or when you are in a position where players can not retreat. Block casting and maintaining distance nullifies it most of the time. I've also seen bombers use ROA against the player(s) wearing the set.
When the game is operating as it should, I don't find ROA to be a problem. The lag is what makes ROA a nuisance. Its become the new Snipe desync from days past. Either fix the lag [Yeah, right...] or fix the set, because sets should not rely on bad game performance to be effective.