If things go south there are plenty to blame(i.e China, Russia, EU, rebels, etc). It is never the leader to blame. As the party leader controlls the police and the millitary there are really very few that would dare to consider a coup/leader change.
Even North Korea's Kim is "officially" supported by his party members but we already know what happens when they question him.
It's only a dream, but it could be so beautiful.
As Hyman Minsky would agree - there's only one way to handle volatility, take it in your face. You can't suppress it.
It's not so much "they're pumping the numbers by cooking the books", it's more of the regime being at the right place at the right time. Other east asian countries industrialized at the same time without the CCP, for instance.
In fact, by making himself basically dictator in life he has added the potential for tremendous instability in Chinese politics that did not exist before he took those actions.
Of course, you'd have to be wearing rose-colored glasses to take that portrayal at face value, and you'd also have to ignore significant atrocities the leaders were responsible for.
Trying not to do the apology of a terrible regime, but I can see why Xi would see himself as "leading China into an age of unprecedented glory".