Israel was delivered from Egypt with a bang, despite the continuous grumbling that took place. God was honoring his covenant with Abraham, Isaac, and Jacob. Yhwh was the bringer-out. It was miraculous. Ten plagues. The crossing of the sea. The drowning of the Egyptian army. Provision of water and food.
Several hundred years later, Israel cried out for miraculous deliverance from Assyria, from Babylon, from Persia, from Alexander the Great, from the Romans. And from the Nazis.
No miracles were forthcoming.
The covenant was still in place. God was still watching and he cared. But no miracles.
Just goes to show you.