"Anyway, it doesn't affect what Tom Kuhn suggested the series with the working title is The Warrior."
Yes it does. That's exactly what it affects. If a quote isn't attributed to someone, it isn't what they said.
Everyone on here automatically assumes that whenever there is a minor error in a book or on a website then the absence of lawsuits flying means it's true.
I'm not saying it's not true, it's just that we need stronger evidence than the words of a musician who writes a book about his hero Bruce Lee. We still need a smoking gun. By that I mean someone who worked on the production of Kung Fu actually saying the working title was The Warrior.