When you analogize to a separate situation like keyed locks or zeppelin airspace access rules you're attempting to say something about similarities between the reasoning in resolving the rule on both sides, which requires you to actually make a contention about what aspects of the situation are compatible, and which of those aspects are salient to the definition in question.

Computer behavior patterns are different enough that if you want to analogize, for the love of god explain the aspect you are analogizing. Even the notion of a "protocol" doesn't really exist in meat space.

Something like "transit through third-party routers is a form of access easement"? OK, I could maybe roll with that as a premise if we get into the weeds about what that would imply.

"It's like an unlocked door!" Jesus christ, stop. No, it's not. Even particular unlocked doors aren't what you're thinking of as an archetypical unlocked door, because "unlocked door" isn't a legal concept.