I love it when the Mater gets all "meta" (talking about talking about things, why we talk about what we talk about, who's talking about what, what we should talk about, who has a right to talk about what). It's even better when it gets meta-meta (talking about sponsors reading what we're talking about). So silly.
My point is/was, if a rule is open to interpretation, as opposed to judgement, it should be fixed. And if a rule can be made easier to judge it should be fixed.
Interpretation is: what does the rule mean?
Judgement is: was the rule broken?
For example, the rule in baseball is "if the runner reaches first before the fielder catches the ball, he's safe". The interpretation is clear, judgement is why they have umpires.
This rule is open to interpretation. Does it mean the entire tire (e.g. the sidewall, the parts not touching the ground) or just the contact patch? Some clarification would help. If, in order to be able to use just the marks on the ground as the measure, it would be easier to judge if it's just the contact patch, then fine -- have the rule say that.