Major rhmyer explicitly says you may fire a dice (including black dice) from a squarden at medium range...
You are absolutely right - and Paragon does not explicitly say that black dice can be used at any range.
Edited by headache62let me repeat my self
to clarify, everyone is getting confused with the difference between your attack pool (the dice you use in an attack) and your battery armament (the attack value of the ship)
Battery armament is range restricted but your attack pool has no such restrictions so paragon works at all ranges
For example Expanded launcher adds to the battery armament not the attack pool, so the dice from that are only useful at close range

