It’s also far more consistent. The ü of Pinyin only has umlauts with l because lü and lu are both valid syllables. That the u of qu and ju is actually ü, and th

It’s also far more consistent. The ü of Pinyin only has umlauts with l because lü and lu are both valid syllables. That the u of qu and ju is actually ü, and the u of chu and zhu is u is confusing, to say nothing of yong/-iong. In Zhuyin you have discrete ㄨ u and ㄩ ü, and yong doesn’t masquerade is a rare vowel, it’s just ㄩㄥ。