What happened to FTP anyway? I know there were a number of issues with it (security, working through NAT, lack of a standard directory listing format etc); but these were all problems that people managed to solve in different ways.
It just goes to show how far how our industry is willing to embrace change for the sake of change (with the results sometimes being inferior) every time a new buzzord appears. I reckon a modernised version of FTP would do the job pretty well.
What I'm mainly concerned with at the moment is building something that recognises a widely-adopted protocol is going to be very difficult politically to achieve (and get implemented), but a library which abstracts over the different protocols would relieve most of the pain.