A couple of things to consider are cost and multiple use potential. Tech./accessory cord is not designed like paracord and does not have the distinct multiple inner core bundles; it is a single bundle of continuous fibers, which might not provide as much potential in terms of various uses.

Paracord will likely pack down better then tech/accessory cord and costs considerable less. Yes, tech./accessory cord has greater load capacity then paracord, but if you plan on using it for shelter construction, I would stick to the paracord.

Pete