Unless, of course, the Palestinians can restraint their idiotic, murderous hotheads until the next time Israel hijacks a convoy full of construction material and medical supplies in international waters. Then the Palestinians can say, "As a sovereign nation, Israel has committed an act of war (or terror, or piracy) by attacking our peaceful commerce." Then the Palestinians can have international law on their side as they murder Israelis.
For decades, Israel has been walking this line where the Palestinians aren't a country, but aren't Israeli citizens or Israel's responsibility (as an occupying power) either. That in-between state has let the Israelis get away with some pretty wretched stuff without explicitly breaking international law. With Palestinian recognition in the UN, that all changes.