It's true. Before the patch we farmed this for two months straight every night around 1AM EST to 5AM EST and didn't see but one drop. A guy in our group rolled on it by mistake and won it from the friend we were farming it for. So that's why we kept running it until yesterday. After seeing two drop like that I'm convinced the drop rate is much higher now. Also paired with the fact that the primal accessories are able to be desynthisized into Battlecraft III and Primal Demimateria it's worth running if you have friends that are GSM desynthesis.

Good luck with your farm!