Israel disengaged from Gaza almost twenty years ago now, ending the occupation and effectively giving the Palestinians the chance to have their own state.
Since then, Gaza has attacked Israel, targeting its civilians over, and over, and over, clearly showing that the desire for genocide is no less today amongst the Palestinian leadership than it was in 1948.
I highly doubt that Israel will ever repeat such concessions in the future. Simply put, it was a grave error with a cost that Israel is still paying in blood to this day. This current invasion by Hamas only reinforces the fact that Israel fundamentally cannot trust Palestinian leaders and must keep any autonomy with a very short leash.