This week's 80 points fashion report requirements are a complete joke :(

[Kirika-]

that leg piece REQUIRES a 70 Dragoon!!

https://ffxiv.gamerescape.com/wiki/A...rueblood_Brais

You DID NOT even look at what leg piece that is, obviously

Any Antiquated leg piece, not just Dragoon.
As in any L70 DoW/DoM job quest legs work.
Follow the Acquisition links on the link you provided to see all jobs Antiquated gear.