thats not terrible, you are far from fooked. Patch it up and rock on. While you're there, you might want to run a flat bar or piece of angle behind the rear seat mounting points. If the floor flexes a lot, that could translate into a broken seat.
After messing with the jeep some more it looks like the whole drivers side floor needs to be replaced someone's been in there before & put some patch panels in. They've been put in with sheet metal screws and there is a good near the accelerator pedal that blows hot air onto my foot.