It's a concept. Concepts are made all the time that you can't get. Ever seen Jeep's Safari concepts? Are you also upset they aren't offering the 50 gallon tank and high pressure water pump?
There's going to be a huge aftermarket for everyone to build these however they want.
Probably not. I don't think B&P is as messed up as people want to believe it is. A lot of the "bugs" you see reported are more about wanting things than contradictions. There are issues, but I don't think this is one.
Ford has a ton of modularity in their products. Considering it's a standalone option on BB with nothing else required, I bet it'll be pretty straightforward. Even on the new Fusions, upgrading from the base to Titanium tails like I did required one minor code change in Forscan.
It's probably correct. Just like with all models, you can't get every option on every trim. Why have trims if you can get everything on every trim? It's how it works on all of Ford's other models and every other manufacturer does the same thing. Higher trims get more options.