Because it's good-old trick of making vague and overreaching rules, so anybody could be declared guilty and thus maximizing power of people who apply these rules.

But history repeats as comedy, so thankfully no firing squads and killing fields this time.

I think that's the effect of attempting to codify good etiquette. You get drowned in details and the result is kafkaqueske.

Going to details it look like they aren't making changes that are more equitable, tolerant or inclusive. Or that really those words don't mean anything what they meant anymore.