Once may have been accident. Twice seems too often to be a coincidence.
It could be safe to say storing passwords and sensitive information in plaintext has become an unofficial IT industry standard.
You can find lazy newbie programmers everywhere.
I guess that the standard is to cut costs and don't do even a peer review.
Many platforms sell end user meta data for profit. Passwords and other sensitive data could qualify under this heading. Governments would probably also support passwords and sensitive data being stored in plaintext to address money laundering.
You're thinking too far. Passwords stored in plain text are pretty much useless for government (they can just get the other data from database, in the same way they'd get the passwords).