Det is weigted at about 30% lower when factoring ilvl caps compair to say crit. Relic treats all stat caps like the are primarys since you may have people applying materia in any order. It has everyone apply a combination of 75 at that phase in development to keep it fair across all jobs as well.

The other thing to consider is are the HA weapons even stat capped for their ilvl or ever intended to be? Compairing the HA weapons agaist each other they dont even match up to having equal comparative state values. The answer may be HA were intended to be balanced not necesarily fair, and relic fair but not necesarily balanced.