All chat should be disabled in ranked
This is just plain common sense....I mean why do we need to have cross chat between teams in a ranked game where you should be focused on your own team and coordinating with them.
Also the enemy team sometimes becomes toxic and arrogant if they are winning and taunting many players so then those players become tilted and prone to becoming more toxic.
I know there is a feature to disable all chat and I have it enabled but that doesn't mean every player does the same...