As genocide per definition requires internt, the argument that "whoops, it was an accident!" might actually hold up in court.
Of course it is not an accident, and central authorities (Netanyahu and his fascists) know exactly what they're doing. But this is what they're betting on, and time will tell if it works out for them.
The genocide convention and the state of Israel were brothers in birth, both being responses to the atrocities of the Holocaust. This time around they will be reunited as enemies.