It's exciting to see progress, but I think 180 days is too short for this to be worthwhile for people who really wanted this. They've leaned heavily into the "nomad" part, but the issue is more of practicality. This visa doesn't come with a Residency Card, which means that getting a traditional lease in Japan is going to be difficult. For 6 months, you'll be on an uphill battle with some services like housing, which…
Length is fine. I am seriously considering it. Properties in rural Japan are VERY cheap (like 20k USD). It makes sense to just buy summer house there. It is pretty good life to spend summers in Japan, and winters somewhere at south.
If you're lucky, the only problem will be that the house is very remote, and you need a car to get there. That alone is a substantial problem on a 6-month basis if you don't have residency. But realistically, houses that are in move-in state in an area where you'd actually want to live cost far more than $20k.