Israel's most far-right government ever hasn't wasted any time in cracking down on Palestinians. This flag ban is simply symbolic of all the efforts taken to retaliate against the UN vote to refer the decades-long occupation of the West Bank to the International Court of Justice. Tel Aviv's goal is clear: to harm the Palestinian cause as much as possible and bring about its downfall.
While waving the Palestine Liberation Organization flag is not a crime under Israeli law, it's self-evident that its display expresses solidarity and sympathy to terror groups when it's flown in the homecoming ceremony of a convicted murderer who spent 40 years in prison. This ban is a necessary measure to curb the acceleration of terrorism and prevent further public disturbances.