Hypothetically, if Mac went under and ceased to exist, do you really want to be that business that relies entirely on Mac ecosystem?
IMO Linux is simply the safest OS to rely on because it's open source.
Anyone who buys brand new hardware can attest to the contrary, because of the lack of drivers.
Windows is the safest OS to rely for business. It's also way overpriced, in part, because of business.
I know I will not buy an AMD HD 7000 series yet for my Ubuntu rig because some things don't work in the OS driver.
We both love OSS, but please be objective and look at the issue from all perspectives.