It's very out-of-date and I wonder if part of it is just that it's not an issue that tends to affect the playerbase in Japan as much, even though I have heard the odd story now and then of someone having trouble because they moved to or away from Japan for work or marriage and dealing with their account afterward became a headache. Movement between the US and Canada alone is not at all unheard of - when I was moving up, I got plenty of advice from just people in my spouse's social circles who had moved for relationships before me - and European countries are smaller so that it's barely even unusual to end up somewhere else for love or career. Then there's situations like Zepla's which undoubtedly affected others as well who are just not public faces. At the very least being able to change country within your base region should be simple and straightforward. I'd be happy to provide support with evidence if required, it's not like a country move doesn't come with lots of paperwork to show for it!