That suggests that lockdowns and vaccination together work better than vaccination alone, which is not particularly surprising. It seems, though, like you're suggesting that that means the vaccinations did nothing, which doesn't follow. It might well be that the case counts would have been twice as high if nobody had been vaccinated (or, who knows, ten times), and maybe some percentage of those additionally infected people would have died, or suffered long-term health outcomes. There's no way to know what the appropriate counterfactual is from this data alone.