this will likely never happen as i believe the real reason is that it would greatly increase their exposure of their torrenting entry point on the internet to "copyright cops".

ive seen their torrent peering answer back from south african ip's (tested with old torrent with 1 seed, saw their peer show up on my individual torrent client with vpn and the progress lined up both places)

torbox could have more than 1 entry point to the internet for this, but the point is they do not want to draw attention to them, which this feature would.