he does not. His small logging system is not small at all, it spans multiple systems and has requirements that are not at all typical for small systems.
For a small system - a desktop PC and maybe a custom router box - you do not need one central place for the logs. Thus you don't need an easy way to change it. You don't need to preserve logs in a more efficient way than logrotate does. They don't need to be stored more structured than the filesystem does, the queries are local, and grep is more than efficient enough.
Maybe a binary log is the best choice for you - it seems to be what you want. But that does not generalize to the general public. That is why the rant feels very misplaced for me.