Uh, if they cared that much about Taiwan they would have taken it by now. They care more about economic stability than “unity”. If you have a degree in “Asian Studies” that includes the Warring States period, you wouldn’t know about political science or economics. You know, recent history?
The “Mandate of Heaven” is just an idea, but they don’t want to go putting ideas of incompetent government in people’s heads. That’s why they either try to respond well to disasters or cover them up.