It's the drill down to what you want feature which makes infinitely more sense than screens of randomly placed tiles I reckon. I use RHEL on servers at work, Windows 7 on the desktop at work and I have a Macbook Pro 15 at home which I swore at for about 4 weeks before I loaded Windows-7 on it and became productive again.
Linux has its place and the 'Command Line Only' installs in datacentres is a superb feature which makes it rock solid as a server platform. (prevents pointy-clicky tinkering) But Win-7 is still the de-facto corporate desktop of choice with very good reasons. With Win-8 is seemed like M$ tried to make the same OS for phones, tablets and PCs which was never really going to work. Corporates like standards to keep training costs down but that was a step too far, especially since a lot of companies issue Blackberry or iPhone as their devices of choice, not Windows phones.
And I can also tell you (as a former IT Director at a publishing house) that Macs in a corporate environment still don't really work with their terrible thought for supporting non-Mac networks, printers, corporate applications and the ability to enforce standard environments. Until they bite that wee bullet it will remain a niche market product. Trendy it is for sure but beyond (diminishing) leads in the DTP workspace they're not corporate machines. Lovely hardware, no doubt about that but the OS is definitely consumer, not corporate.
And if Win-10 doesn't revert some of this wacky 'tiles for everything' approach the corporate uptake will be just as poor as that on Win-8. Too many companies are sick of the constant cost of re-training staff, simple as that. It makes the licensing issue pale into insignificance.