Is it a bug or is it a feature thats ending its shelf live in tmr’s patch?
Technically speaking holy bolt elixir is bugged too. Do players drink it bannable? Its maked as season 4 exclusive feature. We players view these 100% unintended but we arent devs. Perhaps they are intended? We dont know.
End of day, Blizzard reserve the rights to determine what is or not breaking CoC, if there are any.