It could be in order to force the US out of the position as a neutral. This would make what we all know official. It also seems more appropriate to go for standard membership first. Lastly, perhaps it is to slowly apply pressure on Bibi. After the vote in the UNGA the icc quickly kicks in. This might be a way to ensure that all diplomatic avenues and momentum is exhausted before going to the UNGA.
Ex-FM Lieberman: Firebomb attack in Jerusalem a reminder that norm is Arab terror against Jews (Haar