We finally separated FTP and SFTP storage options. You will see the separation in the Pipe Account Dashboard (credentials and logs) and the documentation.
FTP (File Transfer Protocol) and SFTP (SSH File Transfer Protocol) are 2 diferent protocols.
Moving forward, we expect to deprecate FTP because it is inherently insecure. We plan to add support for FTPS (FTP over TLS). This separation will clear the way for that effort.