By giving customers the standard Windows Desktop in Surface RT it's implied that it's Windows compatible.
You said they promised it, not that you inferred it. They never implied it and were always clear that it wouldn't run x86/x64 apps and they wouldn't allow developers to port their apps to arm.
From Windows Supersite.
"Windows 8 is not well-designed. It's a mess. But Windows 8 is a bigger problem than that. Windows 8 is a disaster in every sense of the word.
This is not open to debate, is not part of some cute imaginary world where everyone's opinion is equally valid or whatever. Windows 8 is a disaster. Period."
What isn't up for debate is how biased that piece is because it's written to generate clicks to raise advertising revenue.
http://winsupersite.com/windows-8/what-heck-happening-windows "More Microsoft exec departures mark end of a Windows era
With Jon DeVaan and Grant George officially retired and most of rest of Windows 8 team out to pasture, Microsoft silently acknowledges complete lack of faith in Windows 8."
By you quoting that web site you silently acknowledge that Windows 8 has been a huge success. See I can do it too.
People retire all the time, it doesn't say anything about their past work. It might say something about their ability to perform future work. It might be a case of them making scapegoats of the people involved.
Microsoft took a punt with Surface and it didn't pan out, which wasn't because you don't like the start menu & doesn't count as Windows 8 being a failure. Some people might have been moved on because of the loss on hardware, although Microsoft usually are cool with ideas not panning out, they aren't as money driven as someone like Apple.
Enterprises not running Windows 8 is not entirely new. When Vista was coming out I was hearing about Enterprises that were still running projects to roll out XP to their NT4 machines. But "enterprises are as annoyed as usual about new version of windows" is not as compelling a headline.