When you say: “In the calming of the storm, it’s not that Jesus expected them to calm the storm, but rather that since he was in the boat (asleep!), they should have been reassured that they would be kept safe. This is exactly what proved to be the case” are you sugguesting the disciples “lack of faith” was in their lack of belief that being in the presence of the divine Christ (albeit asleep) would save them? Or to put it another way, their lack of faith was demonstrated when they woke Jesus up from his nap?
I would agree that Jesus perhaps didn’t expect them to calm the storm; but I wouldn’t say that Jesus didn’t believe the disciples couldn’t do it, or do something about it. These were very able bodied fishermen and sailors, who have known this sea well and Jesus could have been referring to their lack of faith in themselves as able bodied seamen. However, a very similar narrative takes place in Matthew 14, and in that account, the lack of faith is attributed to Peter doubting his ability to do what Jesus does…even after he had walked on the water.
I also don’t think it’s too far of a stretch for Andrew to imply that the Gadarene demons were fearing the coming destruction of Jerusalem/national Israel. It’s evident throughout the biblical narrative the nation of Israel had a very flawed view of God and the expanse of the Kingdom of God. As long as Jerusalem, Israel, and the Temple remained as they were, the limited view of God’s reality to Israel and the world would have remained limited, thus giving the demons more room to work with. By destroying Jerusalem, the Temple, and scattering the nation of Israel, God in essence rebukes the limited view (wind and sea) of Israel/world and establishes in the hearts and minds of the people the extent of his authority and kingdom.
Therefore, I believe we can see the Firstborn Son of Creation showing the rest of the children of God what it means and looks like to take on flesh and yet also live out the grace apportioned to each of us in kingdom of God. This, like Jesus is both natural and cosmic.