>>75945220Evidently while english-speakers speak/sing japanese with a distinct accent, it's still passably japanese pronunciation and doesn't really stand out as particularly foreign. Tokyo is an absolute mess of different regional accents and dialects so everybody sounds a little foreign to everybody. For the most part, ENs don't make any major pronunciation mistakes (like jps switching L and R or ESLs failing to pronounce TH) so it doesn't really stand out compared to the many other accents they encounter.
English is a really odd language. More odd than most, and that means there's countless landmines that trip up new speakers, whereas there isn't always the same difficulty the other way.