Not saying it is a hack, of course I haven't checked the link/article you mention. I am speaking from experience. I have backed up to a file share, and I have had backups fail due to network issues while doing so. It is one of the reasons I have always pushed to have sufficient space to on my servers to complete backups locally even if I then needed to move them to a central location to be backed up to tape.

I have also done restores from UNC's (file shares). The tened to be slower than copying the file to a local directory then restoring, but I never had a restore fail over the network. Now that networks are getting faster, doing the restore over the network is getting better, but I still like backing up locally then moving rather than backing up over the network.