The article seems to suggest that ubuntu is an OS that the non-geek joe can install and use without experiencing any issues, it just works. Well, just wait until he decide to upgrade to the next ubuntu release or try to install some restricted driver. Good luck to these newbies if they don't have a friend who knows linux.
I've just upgraded from 10.10 to 11.04 yesterday and only after 5-6 hours i've found the right kernel+ati driver combination to make my system work again (after the upgrade the GUI freeze after a few minutes of use, i've made a few tests patching 2.6.38 for BigKernelLock, trying different driver releases, checking the installed packages for incompatibilites,etc...). A newbie would have never come out of this alive.
Imho, 11.04 shows that the Ubuntu releases are still made in a rush, with unfinished things that get included anyway (Unity, but every release has its own unfinished or barely working new functionality). My suggestion for Ubuntu? Test more. And don't be afraid to push forward the release date if there are still severe bugs open that need to be addressed.