Earlier quoted context omitted.
Sure but that's not really their point. They're not saying that Linux is a joke nor that it's useless; they're saying that the amount of people installing Linux on their Macs is so small that it wouldn't make financial sense for Apple to support them. Knowing how much an engineer gets paid, even staffing a small team to supporting Linux would cost Apple a couple million each year. That's not even taking support into…
That's not why they're avoiding it, though. They're avoiding it because installing Linux (or Windows, even), would actually decrease their income. I doubt people running Windows on Intel Macs were avid Apple Music subscribers.
or are you saying apple devices are loss-leader prior the app store revenue ?
that's the model taken to the extreme