The comparison with Zork and the later comment about having to "guess" what to input to get a CLI to work we're also bizarre. He's obviously stretching really hard to make the analogy work.
Don't get me wrong, I'm not arguing that expansion of GUI based interfaces wasn't a good thing. There's plenty of things I prefer to interact with that way, and the majority of people wouldn't use computers if CLIs were still the default method. But what he's describing is literally not how any ever used the commandline.
Also most of the infocom games were pretty much improved against Zork in the 80's.
In the 90's, the amateur Inform6 games basically put Infocom games almost as if they were the original amateur ones, because a lot of them were outstanding and they could ran on underpowered 16 bit machines like nothing.
Don't get me wrong, I'm not arguing that expansion of GUI based interfaces wasn't a good thing. There's plenty of things I prefer to interact with that way, and the majority of people wouldn't use computers if CLIs were still the default method. But what he's describing is literally not how any ever used the commandline.