The total secondary stats offered on raid gear increased more slowly than primary stats throughout the expansion (both roughly linear, though). Most of those numbers don't mean much to a layman, and a more interested player would still only really care about being in the right ballpark... so the net effect is that there is a serious chance of worse itemization with a new tier, and you'll even notice it, too. Not sure if want....
That sounds more right. The lesson here is don't do translations for your group at 3AM, then copy it way later without finding the original link, I guess.