Pop linguistics is prone to those inaccuracies, by oversimplifying complex matters. Thanks for pointing it out.

It’s a bit easier / faster to learn how to use a phonetic/phonemic writing system (alphabets, abjads, abugidas, syllabaries…) than it is to learn a logographic system.

Japanese has a good example of that - children at age 6 are taught hiragana (syllabary), katakana (syllabary) and kanji (logographic). While they’re expected to have learned the first two by the end of the year, it takes them around 6 years to learn the 1000 kanji expected for reading proficiency.

But that’s it; calling it a “revolution” is a big stretch. Specially when even logographic systems show some developments in this direction, with hieroglyphs for example showing phonograms all the time, and the modern Han writing system having both semantic and phonetic parts (granted, they only work 100% for Middle Chinese, and certainly not for non-Sinitic languages like Japanese, but still).