I am claiming that the matter is now so confused as to not be worth risking it for anyone. The difference between "look and feel" and "rules" is so unclear that I don't think a reasonable person can make the distinction reliably. You're claiming the distinction is there - and in theory it is. But, in practice, it's not really something that can be achieved. I see no bright line between what is a rule, and what is a look and feel, when things like "number of game pieces" and " the way pieces moved in the playing field" is a look and feel and also a rule.
If it's on the iconic character sheet of a version of a game, it's likely going to be look/feel. Your ability scores are both rules and look/feel. Hit points are both rules and look/feel. Armor Class is both rules and look/feel. Alignment is both rules and look/feel. Move rate is both rules and look/feel. There is no realistic distinguishing line between being a rule and also being look/feel. And as the later is protected, the claim that rules are not protected becomes a meaningless point. In practice, as a practical matter, they may be protected, and so nobody is going to mess with the issue.