Minion and ESOUI are addon managers that keep your addons up to date. However, our addons require a two-way datastream. You get price information from ESO-Hub, and ESO-Hub gets listing information from your addon. This two-way sync is not supported on ESOUI or Minion. Therefore, we developer our own little client program that will take care of these issues, it will also auto-update our addons, so you never have to look at it again. Having it on Minion, only to have you download it via Minion, and then install our client program anyway (because it is required for the addon to work properly) would just be an extra step, for no reason. In the end, our client program will manage the addon.