I found similar. Their documentation often refers to things that simply don't exist. Pictures of how menus used to look and no longer do. Multiple ways of doing the same thing that give slightly different results, with no real reason for the difference.
I have heard though, that it makes more sense for people coming out of sysadmining Windows Server networks.
I thought it made way more sense.
I kind of wonder if this is a case of what-I-already-know bias for both of us.