Luria has never been good at projecting force—which is partly a function of its location. In order to reach a neighbour, it has to cross a mountain range, an ocean strait, or a desert.
Luria is powerful now primarily because it is able to fight close to home. I know it's actually managed to do some damage abroad, but that's a far cry from Luria, all on its own, deciding to go out and, say, bust some heads on the Madina island, or even march into Flowrestown.
It can be maddening, seeing all the people who fight a war till they're losing, then have them say, "Oh, we should stop now, but you need to give us back the land you took first." (Even "we should stop now before you can take any more of our land" is pretty frustrating.) Not because it's not a realistic thing for them to want, but because it's not a realistic thing for them to expect. Sure, you can ask for it—but you'd damn well better be willing to make some meaningful concessions if you are losing a war.