I don't know, why did you? I can't answer that for you. That's ignoring the obvious fact that you still have access to all the Windows software, etc etc, regardless of what shell or start menu you use.
You mention Linux being flexible as a positive thing, yet having that exact sort of flexibility in Windows is a bad thing. Biased much?
Hey, man I'm just telling it like it is. There's no need to get snotty. I understand I have access to all the Windows software. Replacing critical system files is not stable. I use Windows because
of it's stability and sheer horse power. I don't want to be messing with bugs and issues related to replacing my shell. Ask my Uncle that replaced Windows 8's shell with Windows 7's with the hack. It's simply not worth it. Linux is Linux in the end. It doesn't matter what Desktop environment you use. KDE is KDE on Ubuntu, Gentoo, whatever distro. I use Linux as my tinkering and lightweight computing OS. Not my rock solid performance gaming/main machine.
If you don't like how Windows 8 works, then did you buy Windows 8?
This has been debated endlessly before and just ends up been a flame fest and this thread is going the same way, this video can't have been posted for any other reason but to re-open the age old debate, about time it was put to bed forever and people moved on from it.
I didn't buy Windows 8. I'm not flaming. I'm simply giving my opinion on Windows 8.