Why are there over 30 different Arabic Qurans - Quranic Corrections Ep. 3

When Muslims hear anything about Qur’anic variants, they assume these  variants are what is commonly known as ‘Ahruf’, or ‘Qira’at’, which are  nothing more than dialectic differences that have to do with the way  someone reads the text orally. According to tradition Muhammad permitted  7 different Qira’at, or readings while he was alive. These 7 ‘readings’  were then canonized 300 years later by a scholar named Abu Bakr Ibn  Mujahid, who died in the 10th century. The confusion stems from a one-line reference written by Al Bukhari in  870 AD for the need to write the 652 Uthmanic Qur’an in the ‘Quraishi’  dialect; in other words, to write this Uthmanic text so that those who  speak the Quraishi dialect could read it correctly. The problem is that no one could have read such a text that early (652  AD), because in order to read dialectical differences in Arabic, one  needs to have diacritical marks (dots above and below the line), and  vowels (which include the Dhamah = the oo sound, the Fatah = the ah  soun