Earlier quoted context omitted.
I've worked with many first time users over 20 years and have never witnessed any of them intuitively understand either CLI or GUI, both are artificial, contrived and unique and need to be learnt. I don't essentially see one as a better choice than the other for a new user, maybe in some ways the CLI has less abstractions which can be a help, I've witnessed much confusion over the many many ways you can enact the sam…
I think 'intuitively' actually means less having to think about all possible options at any moment or stage of an action. If its clear how to accomplish the next step, it is considered intuitive. GUI are considered more intuitively because options in general are visible as menus and buttons. On a CLI adding parameters to a command can get complicated if you are halfway and forgot if it was '-l' or '-L'.
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What could anyone infer from the terms 'tab' or 'window' without some prior knowledge, these interfaces succeed because the cost of failure is low and the level of feedback and reward is high, so we persevere, an intuitive interface would require a whole new conceptual model of how we interact with data. No, I don't have one to show you, I am fairly certain that existing approaches will appear draconian to our children's children though :)