Can't discount Congress' messing about with the USPS' financial obligations.
In 2006, Congress passed a law that imposed extraordinary costs on the U.S. Postal Service. The Postal Accountability and Enhancement Act (PAEA) required the USPS to create a $72 billion fund to pay for the cost of its post-retirement health care costs, 75 years into the future. This burden applies to no other federal agency or private corporation.
If the costs of this retiree health care mandate were removed from the USPS financial statements, the Post Office would have reported operating profits in each of the last six years. This extraordinary mandate created a financial “crisis” that has been used to justify harmful service cuts and even calls for postal privatization. Additional cuts in service and privatization would be devastating for
millions of postal workers and customers.
Published: July 15, 2019
An unprecedented congressional mandate threatens the Postal Service's ability to continue to provide good jobs and universal service.
ips-dc.org
Take away this, things don't look as bad as with.