I just played an ARAM game and everything was fine until my team started seeing the enemy Xerath's chat. I left the champion names in to possibly make it easier to see.
Thing is, the Xerath wasn't talking in all chat, he was just talking to his team. If you look, Maokai and Janna have an [All] before them when they talk in all chat. Xerath doesn't.
My whole team could see it though. We asked the enemy team about what was being said by Xerath and they all said it was true.
I have a version where stuff isn't crossed out if needed.