Could Telltale benefit from BitTorrent? It has a few benefits over direct downloads, like automatic error correction (Anyone ever end up with a corrupt installer and have to re-download 300+MB?), and the possibility to receive files faster that what the server(s) alone can achieve (Assuming the torrent is well-seeded).
As far as downsides go, the number of downloads can double (One .torrent per release), although, since most if not all current BT clients allow you to select which files you want before downloading, it's possible to include both Windows and OS X installers in the same download. Another downside could be that you require a separate program to actually handle the torrents.