Documentation isn't sexy or something. I don't know why Linux documentation sucks so much, but Redhat makes it suck must less. It takes lots of effort, money and writer hours to create the kind of documentation that Redhat maintains and businesses love documentation. A HOWTO or a FAQ are not documentation.
I actually prefer man pages and I dropped Linux for my personal project years ago in favor of OpenBSD (sometimes FreeBSD) precisely because their man pages are well maintained and really well written. I still have to interact with Linux sometimes and it's almost always Debian or Redhat. And I gotta say Redhat beats Debian on documentation.