We’re working on improvements to the box and the bends of the cables are something we take into account. Also the power cable sticking out of the back.
As written elsewhere, it’s a reference device, which was then also used by other open source projects like OSMC: https://osmc.tv/2016/08/announcing-the-osmc-pidrive/
So being a fully open source project we are happy about any contributions, especially if you are knowledgeable in that field. In any case I will forward your recommendations to the team, so thanks a lot already! (I’m sure they also thought about these things so I’ll let you know.) :)