All secondary gains are showing again. For example, a quest that gives only Ironforge rep has additional lines in chat of rep with all other Alliance factions at a fraction of the main Ironforge rep.
This is spammy; I hope it is not intended.
EDIT: I just completed a quest that gave 2 reps, and this did not happen.
Maybe that Blacksmithing Quest “Supplying the Front” was a special case?
Or maybe a Dun Morogh quest does not give rep to the others?