It's just impractical. Certain forges have certain things linked to them.. Keys from Maximum Temper chests. 500 kills with certain weapons; Threat Level, Jötuun, etc. It's silly to have to wait a rotation cycle of up to three days for something that could previously be launched at any point in time. I understand that consolidating them into a shared playlist is nice but plenty of people will still be using them even when spread apart.