Earlier quoted context omitted.
> The script was such a bad fit that it was abandoned later The mish-mash of katakana, hiragana, kanji (& their crutch furigana) plus romaji in Japanese sort of signifies how bad of a fit that script is to their own language and its use. In many ways it feels like throwing rocks before one's own feet.
It's visually extremely inelegant as well. Seeing a kanji character next to a single stroke katakana character in the same word is ridiculous and yet somehow commonplace. I would be more surprised that the Japanese haven't done more to clean this up if it weren't for the cultural conservatism deeply embedded in its society.
If anything, the Japanese writing system is very elegant in terms of information flow. In a general sense, each script has its use: kanji for content (meaning), hiragana for function (grammar), katakana for foreign words and sounds. Of course, there are many exceptions to that, but the mix of scripts has benefits for parsing text.
Obviously, the Japanese writing system is not a single constructed system like Hangul, but I don't see any reason why it is inefficient (aside from, perhaps, the time required to learn kanji for school children).