The economy is held up by belief, and while I'm sure there are some good intentioned people telling us this, there are certainly some people who are using this as an opportunity to change financial positions.
It's important to point out that DMSA's release alledges that media has been trading on rumors that Evergrande had made the earlier missed debt payments before the grace period ended, when in fact it it had not. Several commentators over the past few weeks have pointed out that all of the media reports saying that the payments had been made were circuitously cited; no one had heard from a creditor directly. Now we have.
So now one has to wonder why essentially every major journalistic entity involved in the financial space would bet their reputation on hearsay, for something with such limited effects; especially when it would only buy a few weeks, at most, of this false belief.