Danger in Char Siu?

One of my favorite Asian foods is char siu -- especially in baked manapua form. You can see and learn more about manapua at the Manapua Research Labs where I'd like to work someday. Typically, char siu meat has a bright red color. Seasoning mixes are a bright red powder. That made a connection with this article about red dyes in food sold in China. Hopefully that's not what makes char siu taste so good.