they made the item better and people complain about it. Why should they warn anyone? Like Lavafoxx said, you didnt lose anything, you just didnt make as much as before the change.
and no, they didnt nerf honor gear, they made it less PVE viable. Those who bought it for something it was never intended to be for. you could have invested just as much time in the PVE equivalent sources and gotten the pve gear.