True too many diacritics are difficult to use, although I think it was as easy as anything else when handwritten. As technologies progress any script will be written easily, so a nation having a distinct script is part of its identity. Also a mistaken belief is that a scripts glyphs and clusters need to represent the phonetics accurately. Hangeul is possibly the best phonetic script that I can think of other than using IPA which is now used for some African languages.