I havent used 8, but it seems to me there's a share of reaction against it because of the [very understandable] fear that MS might be planning to abandon the desktop.
That is precisely what they are doing and that is precisely their intention.
They want new users to switch the computer on and find internet, email, facebook etc. right there in front of them and never have to click on Desktop at all - hell on ARM tablets Desktop won't exist.
This is all pretty clever from MS - the next stage in the game is 'you have used Windows 8 on a PC why not make your next purchase a tablet - you don't really need all the other stuff that comes with a netbook, laptop or desktop computer ... oh and hey, we have you covered MS Now run the shop so you know everything you want is easy to get and we also make the hardware."
Microsoft's slogan by the time Windows 9 or 10 appear (depending on how much crap they take over Windows 8 ) will be "Microsoft - locked in like Apple".
Businesses will put up with crap for so long but eventually they will move - if for no other reason than MS will phase out support for Windows desktop products at some point. In the meantime they will still be coughing up corporate subscriptions for old versions of Windows and old versions of Office (so why should MS care). I wouldn't be surprised if MS at some point doesn't change the corporate licensing to force the move to the latest version of windows and office ('so we can provide the best support') - given that they unilaterally rewrite EULAs and contracts all the time.
We have to accept that MS is getting out of the operating system and office software game and moving into the consumer/service/subscription business with a manufacturing arm (pun intended).
We can all squeal and squirm as much as we like.
Personally I am quite pleased I will reach retirement age before all this comes to full fruition but I pity anyone working in the IT industry over the coming decades. The 80s saw the death of big industry in the west, I suspect the next 20 years will see the death of information technology (as a business) in the west - everything will be locked into two or three large conglomerates and most of the work will be outsourced to suicide camps in the far east.
When are western governments going to notice that the west is gradually losing all forms of income apart from loans from China ?