However not necessarily in every case but generating an HTML/Flash/etc export is usually often with the intention of uploading it to an FTP to become part of a website or a standalone preview. I think because of this PM could/should have the option to upload the completed export to an FTP. This could reduce the need for an FTP tool.
It isn't a must have feature but one I suppose is very easy to add since the FTP function is allready in PM adding an optional selection for FTP the outcome seems easy. Sorry if it isn't.