That works both ways though. A lot of people are just spreading FUD because it's the popular thing to do. If they've given it a real chance and still can't transition to the changes, or simply don't like the design then fair enough.
A lot of comments about what is wrong with Windows 8 tend to be unsubstantiated or overblown. Yes there is a learning curve on the desktop and it's not particularly intuitive for some time if you've done tasks in a certain way for 15 years. Once you're over this hurdle very little has changed.
For Tablet use there are much less complaints, so I'm sure it will be as easy to use as the iPad, when the desktop environment is not involved.
Not being a Linux expert I feel the same way when I want to do an advanced task in Linux that would be simple in Windows. I don't deride Linux for that, it's the gap in my own knowledge. I'm either prepared to learn, or I am not, it's not the OS's fault.
Windows 8 still needs a fair bit of polish, it's by no means perfect, but if you want balanced discussions you're not really promoting it yourself with an opening line like that