Cool idea, though obviously not a smart idea in areas prone to hurricanes or tornadoes.
I read about these before, and I thought a good idea would be to take existing industrial buildings and remodel them as “apartment buildings”, but designed to hold these container pods instead of having regular units. Basically like a trailer park stacked up vertically and horizontally inside a structure.
Then, when people wanted to move to a new place, they could just have their container, with all their belongings inside, moved to a new building. No need to pack and unpack every time. The problem is, until there were enough of that type of building to make such easy moves possible, there would be no market for this kind of housing, so someone would have to invest a lot of money to make it workable.
Depending how they are achored I bet they would weather hurricanes or tornadoes well after all they are designed to be carried on the deck of a ship.
You could put one in the ground as a tornado shelter as long as it could handle the weight of the soil.