[just another ref]

Originally Posted by Nevadaref

True, but isn't that what the Case Book does? It seems that the Case Book makes this point quite clearly.

The Case Book does a lot, both to give practical examples of rules as written, and to expand the scope of rules to areas not mentioned at all in the rule book.
But this is an example, in my opinion, of language which does a poor job of delivering the intended message. When a thrower accidentally touches a toe inbounds, this would not for most people amount to "carrying the ball onto the court."