That is completely irrelevant to the discussion. The point is that both systems have very stable ABIs. Windows has a somewhat higher-level stable ABI, but as a result it is a much wider surface to keep compatible, it breaks much more often, it requires a lot more hacks to keep it stable over time (program-specific hacks kept around for decades), etc.
This is the point of difference: the layer at which each is stable. NOT whether Linux is stable.
