I'm pretty sure dishy is way out of spec for poe power use. Using proprietary connectors is probably forgivable with that. Poe+++

I agree not having Ethernet out of the box sucks. I suspect some one chose environmental seals over Ethernet given the water proofing on the cables. Though they seem only half way committed to the path given the warnings and disclaimers about the Wi-Fi access point not being rated for waterproofing.

I had a cable sliced and I put standard rj45 jacks and a coupler in as a repair and it works fine. Pretty sure you could put standard ethernet in there straight to dishy if you really wanted to. At least if you can feed it enough power.