It is a discussion, is it not? Fact remains coaches are being banned because they knowingly abused a bug in the game for personal gain, which is cheating no matter how you slice it.
If one person disagrees with you, then that is a difference of opinion unless it's a denial of fact.
I still see the discussion of coaching being banned or not a well-respected discussion but there is no reason for it to get ugly, we're all adults here, are we not? Granted not all of the users are... but you definitely are, friend.