But who is this solution for? Unless you change the pronunciation of the language, it would be adding markers around whole syllables to disambiguate - syllables that represent the kanji they came from (many of which already have phoentic components) - but those syllables would still be less dense and visually identifiable than kanji is for someone who already speaks the language.

It's similar to initialisms or emoji in English; it's of course frustrating for people who don't know them, and there are reasonable complaints about some of the extremes, but speakers/writers use them because they find them useful when communicating with an audience that's also assumed to know them.