Why would you want a manpage that doesn't have the structure of a manpage? If every other manpage has one structure, you want yours to have another? What's special about yours?
The consistency is not an accident and my personal experience is that the format works well.
The point is exactly that people do not want something like a man page, so they make their own thing that's not like a man page, and the suggestion "go contribute to manpages instead" isn't a good one, because it would mean making bad man pages (or not fixing the issue people have). If aspects are useful for the man pages (e.g. to make better examples sections), they can still be pulled out and added there as well.
The consistency is not an accident and my personal experience is that the format works well.