Earlier quoted context omitted.
> yet, English fluency sucks That is totally not my experience. I have travelled widely in Asia and Japan easily had the best English fluency across a range of people I conversed with (well apart from Singapore but that doesn't count). Compared to Korea/Taiwan, Japan was a breeze, even in HK I had trouble with shopkeeps outside of areas heavily frequented by westerners. I travelled to some pretty far flung areas of J…
You are correct that almost everybody is familiar with English, but that's not speaking it, let alone being fluent. To a degree, English already is part of the Japanese culture and language. But it's a different English. Some of it is compatible, but native speakers are the one's graciously degrading (to use a web programming term) to meet their level, and not them meeting you at a level you're accustomed to speaking…
It's all an artifact of their teaching methods and tests.