The UX is fine for people who are used to a culture where they see massively information-dense, brightly colored, and spacially organized things all the time. There's a strong cultural correlation in UX design, and what works in one country often doesn't work in another. I've worked on a few websites that are accessed globally and it's common that a 'one website for everywhere' strategy yields poor results. You have to consider much more than just language when you go international.

Accessibility is a problem but that's due to browser developers not really considering other cultures properly. My Japanese team never found a good solution to that.

Yeah, who needs information and functionality? The whole web should be one ceaseless Instagram feed on an iPhone. /s