It seems like the structural properties of the foam could be tricky to get right. If it’s not strong enough it could fail under drag forces or turbulence in the atmosphere, but if it’s too strong then the astronaut would be unable to free themselves once they landed.

What in the world is the original context here? Have these people never encountered a puddle before? Her foot is completely immersed in gutter water and his white pants are about to be soaked and gross.