Every cable in that box enters it and leaves it. I actually needed a spare pair (page relay drive) The big blue coil is fiber (shame there's a extra 25' in that box -but I don't expect any better from telecom) however the speaker, line and video should all have been shortened appropriately and banded nicely. Give me an afternoon with a bag of connectors and you'll won't mind eating out of that box as it would be that clean!)
And yes, those are radio-shack barrier strips with 22ga STP for PL-Comm, wires just bare stripped and wrapped around the screw with no spade or ring terminals!
It was a contractor job by a guy that's really hard to hate and who's customers generally like him. He just has a neatness problem and it shows at his house and shop, -you just can't expect neatness out of someone who has never actually experienced it!