No, and it never was.
With Lehman, the banks stopped lending to Lehman and then to everyone else. In China, Beijing can let Evergrande default while compelling lending to peripheral players. Thise players know this. The market knows this. That makes contagion risk de minimis. (For Western central banks, the analogous policy tool is “extraordinary measures,” i.e. committing to buying everything in sight.)
Keep in mind that Evergrande is defaulting because Beijing implemented debt limits. They’re wilfully deflating the bubble American policymakers ignored in ‘08. I’m a China hawk. But this whole episode is a show of strength for their system.