It definitely no longer makes sense case wise, unless those online retailers are indeed getting full cases of each figure. But then how to you explain regular retail that's had Leia and Greef for a couple months and only recent got Fett and Child? It certainly feels all wonky these days.
I don't remember a single report of regular retail (you mean brick/mortar Target, Walmart right?) getting solid cases of Leia and Greef. Online stores did but not in-store.