When transferring files from your workstation to Infuse over FTP, it is not infeasible to want to transfer one/several back. For example, if you accidentally delete a local copy.
However, it looks like FTP transfer with Infuse is one-way so you cannot download a file back and have to connect your iPad to your workstation and use iTunes. This is often inconvenient.
I would not class this as a wish, since there should be no discrimination on the direction of transfer of data.