Sure, but I think there's a tendency to try and make this seem way more clear-cut in either direction than it really is, e.g., Apple clearly {is | is not} guilt

Sure, but I think there's a tendency to try and make this seem way more clear-cut in either direction than it really is, e.g., Apple clearly {is | is not} guilty of antitrust violation by using their position as platform owner to dictate what applications and services are legally allowed on their platform. There's very little precedence in computing history for this other than game consoles, and it's not super crazy to ask whether that's a model that should apply to smartphones and tablets. (To me, that seems to be actually be a fundamental question, and I don't think I have an answer.)