Bike choices

So what do you think a bikepacking bike needs to be/do?
What I mean is the list of requirements that any design process starts with.
Here is what I was thinking, let's hear some other opinions.

* durability - obviously a ‘packing bike is subjected to higher loads and will be used for several days in a row, so this is paramount.
* comfort - a backpack makes cockpit positioning more critical and the extra weight makes impacts harder.
* control - It is also less easy to control your body and bike with higher center of gravity, and more weight.
* low rolling resistance - the goal is to cover some ground after all, especially and often on sand and rocky terrain, since the longer routes are not as likely to be in great shape all of the way as a 2 hour sunday morning ride.
* efficient pedaling - it’s hard enough work already.
* stiff frame and wheels - for better control with a heavier load
* low weight - there is enough extra weight in the camping gear and food. Also bikepacking rides have a larger proportion of hike-a-bikes than normal rides.