Personally I thing they're over stretching themselves by supporting another platform in MacOS.

Now you say Linux but Linux in itself isn't an operating system like Windows and MacOS is. There's some standardisation with Linux distributions but not all Linux distributions are the same. So how do SE support Linux, do they choose to support one distribution or do they support others. There's also the user friendliness of Linux. Linux is not a normal persons OS; it's an intermediate or advanced users OS. I've played with Linux using distributions like Ubuntu and Gentoo and it's just now that user-friendly. There's a fairly steep learning curve and when things go wrong - they go wrong badly. Can you imagine the support questions if something - not the game - doesn't work. It would take an age just to establish what config their system is.

Every year people always go on about this is the year that Linux will go mainstream and it never does. Why, because it never really changes. It's an enthusiasts OS not a average user and these are the people who play MMOs mainly. For FF14 it's not full of hardcore MMO players but for a lot of people it's their first MMO because they like the final fantasy franchise. Are they interested in package managers or a new kernel release. No, they just want something that works and is easy to use and it's not Linux or ever will be. Value have let the success of Steam go to their head and want to be the Microsoft of Linux. Do you remember that little tirade about DX games only being in the Windows store. Co-incidentally happened at the same time they announced their Linux project. Valve would never do anything as sneaky as that. Would they.