That was back when it was possible for normal rares to drop in WT3 and normal and sacred rares to drop in WT4. They made a change in S2 I believe so that these drops would just drop as materials instead of forcing you to pick them up and cart them back to town to do something with them.
This season they wisely made it so only Sacred items drop in WT3 and only ancestral items drop in WT4. Why they ever did things any other way is yet another baffling design mystery.