It's simple. If they aren't playing by the Rules of Golf, but what they are playing looks like golf, then they are playing a variant of golf. Just as a scramble is a variant of golf, since it's not a recognized format under the rules. I don't see why that's such a problem for some people.
Yeah I know...you say this over and over. I'm explained myself plenty of times and I'm not getting into it again.
Bottom line, that is a poor way to express yourself and displays an arrogance that is counter to genuine discussion.