They did some experiments to find pathways in the cells that play a role in leukemia. And they found that taurine receptors appear to be important in some way. So this is an interesting starting point, but not anything like what is suggested in the title.
If I understand the paper right, "the cells feed on taurine" is also just wrong. What they see is that taurine plays a role in regulating glycolysis in those leukemia cells. And of course glycolysis uses glucose as indicated by its name, and taurine looks nothing like glucose.