What is a common limitation or weakness of nonprofit media organizations like ProPublica or NPR $?$ ?

What is a common limitation or weakness of nonprofit media organizations like ProPublica or NPR $?$ ?

Nonprofit media usually serve information needs of publics not served by commercial media

Nonprofit media commonly face operational challenges due to difficulties to generate revenues

Nonprofit media are more likely to be censored by corporate interests

Nonprofit media usually value universal service and access to information