While short vowel markings are left out, as long as different words can have wildly different voicings, it is hard to claim they are redundant. Rather, the reader is simply pressed to tell the vowel pointing from context, a skill that does not come without considerably more literacy education than for alphabet writing systems. The claim that diacritics are redundant would be more easily defended for languages like Romanian where the sounds distinguished by diacritics still usually stand in an allophonic relationship dependent on the word’s morphophonemics, but that is certainly not the case in Semitic languages today.
> How's this Arabic's fault?
The Turkic script wasn’t introduced to the Turks in a vacuum. It was brought in as part of a larger influence of Islamic culture, and because among Arabic and Persian speakers the script was almost always used without short vowel diacritics, the Turks inherited the same “right way” of doing things, disastrous as it was for literacy in their languages until the early 20th century.
While short vowel markings are left out, as long as different words can have wildly different voicings, it is hard to claim they are redundant. Rather, the reader is simply pressed to tell the vowel pointing from context, a skill that does not come without considerably more literacy education than for alphabet writing systems. The claim that diacritics are redundant would be more easily defended for languages like Romanian where the sounds distinguished by diacritics still usually stand in an allophonic relationship dependent on the word’s morphophonemics, but that is certainly not the case in Semitic languages today.
> How's this Arabic's fault?
The Turkic script wasn’t introduced to the Turks in a vacuum. It was brought in as part of a larger influence of Islamic culture, and because among Arabic and Persian speakers the script was almost always used without short vowel diacritics, the Turks inherited the same “right way” of doing things, disastrous as it was for literacy in their languages until the early 20th century.