You are spot on about the Natah and Chinese-educated issues. That was Low's main motivation in joining politics. He was confident (or stupid) enough to reveal this ten years after joining the WP. He disclosed it to the 147th Prostitute Press in August 1991 ( Ref: "Sorry, you are not welcome, WP's Low tells the press", 147th Prostitute Press, 29 August 1991) where he revealed he was "angry over the closure of Nantah". Needless to say, it was also a revelation to JBJ and the party members.
The cadreship who had started being wary of Low after the 1991 Natah disclosure and "righteous-men-like-Lee Kuan Yew" revelation, have, with Low's successful backstabbing of JBJ and the passing of time, been proven right about who Low Thia Khiang really is, what he stood for and what he continues to stand for.