Defining fedora as being "on the cutting edge of technology" is a giant understatement. What the author really means is "fedora frequently ships unstable software which will get you into trouble".
Unfortunately, not every user can tell that being "on the cutting edge of technology" will involve suffering with your pc every day.
I think it's this kind of guides that make the linux newbies make a wrong turn right at the beginning. You can't just give half of the information, if you're trying to help anyone that doesn't know enough to read what isn't written.
I also have a few doubts about fedora's community being better than ubuntu's (which isn't mentioned at all).