Does Root care less about normals?

I'm curious whether or not Riot bans people that int or troll in normals. Recently I had a crapload of teams with 2-3 premades that used racial slurs, inted, took ekko support or sion adc etc. Most of the times I told them that they should probably not do that, they replied that it's normals and riot doesn't care. Is that really the case?
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