Looks like you have a reading comprehension problem.
The article was not about how politically generous is the CPC but about how the CPC have to balance its wanting to control vs popular anger that may get out of hand which would force the government to employ harsher and bloodier measures.
As long as the political system remained unchanged, they agreed, those with positions of power could always abuse it, and workers could hope only for marginal improvements in their lives. For real progress, they thought democratic reform was necessary, and they believed that most workers supported such a goal. But they also knew that persuading workers to participate in a protest advocating democratic change would be all but impossible. The workers had internalized the lessons of the Tiananmen massacre. Everybody knew that the party would quickly crush a direct challenge to its authority, and nobody wanted to go to prison. People were too afraid.
Read your source thoroughly instead of skimming and picking out what you like. Idiot.