Imagine you queue jungle in a Normal game, your ADC takes your starting red buff, your bottom then wipes within the first five minutes followed by your ADC immediately D/C'ing for the remainder of the game, and you get your account suspended.
I understand that the reporting system is overall healthy for Ranked play, but players in casual should not be punished for being forced into overly-lengthy matches that are not what they queued into. There is no 4v5 queue and the casual community shouldn't have to endure corrective action for not wanting to play it.
I know that Riot can implement filters to review chat logs when deemed necessary and efficiently ban offensive players. Enjoyment from a 4v5 is purely subjective and players shouldn't be punished for having a different opinion.