not at all... digital nomad means you can be working from anywhere and on a computer, not that you don't have a boss. I'm a fully regular employee AND digital nomad (my working hours and salary are both fixed, but I can work from anywhere).
Sure it does mean that. But, on later comments, he wrote something like that he visited Immigration in order to exchange a tourist visa to an ED visa. I don't know yet the full story, let's wait and see.
in Korea it's the opposite, only people with an alien registration card (issued to foreigners residing with any valid visa for more than 90 days) can use the auto entry doors, while tourists with K-ETA need to do it trhu a counter. I thought it would be the same here, as an ETA doesn't really guarantees entry, while having a visa kindda does especially the non tourist visas.