In the patch notes for 2.4.2 they stated that the removed the rating requirements for all PvP items. This allowed the PvP War Hero RANKED set to be equippable but, the unrated armor including the Battlemaster sets still have their Valor requirements.
At this point in time with the dye system and the reuse of armor models, I think BioWare should take it a step further and remove the valor requirement since you can already cheese it if people on your server can make the Rated sets that no longer have a rating requirement. There are essentially the same thing with a different swab of paint.