> HTTP is a cleartext protocol. Why does your browser quietly navigate to any HTTP site you throw at it? Anonymous FTP isn't any less secure than HTTP.
This is true, but it ignores the fact that the web has been moving towards depreciation of HTTP in favor of HTTPS.
While FTP is an established standard, FTPS is kind of a nightmare with different and incompatible variants.
The parent explicitly mentions that there are no warnings for a cleartext http connection, but warnings for an encrypted connection to a self-signed certificate.