Or just convinience. When the goal is, to support a broad range of devices - and the vast majority of hardware manufactors are not into open hardware - it is p

Or just convinience. When the goal is, to support a broad range of devices - and the vast majority of hardware manufactors are not into open hardware - it is probably easier, to convince them of supporting Fuchsia by writing firmware and drivers - if they do not have to deal with the GPL and the kernel driver integration, like it is the case with linux. They just write their driver once against a stable API. That makes things easier. And google are not driven by free software ideals - but rather buisness pragmatism. But I don't see this design choice as an attack on free software.