This article has a distinct smell of bias
Saying the OS was "rejected" because 74% of the respondents had no plans to upgrade is just skewing words.
From the chart above: "49% have no current plans to deploy Windows 8, but may reconsider redeployment in the future" That's not rejected, that's careful business strategy.
Also, this business of bringing up the opinions of Windows XP users is unnecessary. If they are still using Windows XP at this point in time then of course they are not going to upgrade.
We upgraded to Windows 8 in our office and everyone loves it. 15 employees who work on and off site. It takes minimal time to learn Metro and even then it's not forced, Some of our employees rarely even bother with it.