Problems with Metro do not mean Metro is bad
This article does a great job of addressing the problems that the Metro UI has... but it never quite makes an argument for getting rid of Metro altogether.
Windows 8 is going to be the first version of a UI that's likely to carry on for years, especially as touch-based systems become the standard. So while Metro may be not quite there yet, that does not mean it's not a step in the right direction. They just need to fix the various problems, make better usage of screen real estate, and Metro will be fine.
Besides, Metro is basically just a replacement for the start menu. It's really not that big of a deal.