scp actually became sftp a while back...
https://goteleport.com/blog/sftp/

but sftp is slow. slower than scp. for 1 file anyways..
https://daniel.haxx.se/blog/2010/12/08/making-sftp-transfers-fast/

and somehow this is not making it upstream!
https://www.psc.edu/hpn-ssh-home/

p.s. shout out to https://mosh.org/ over unreliable, high latency networks.