"The possibility to change the minimum log level required to trigger the rule seems sensible because we might want to adjust it on the fly for debugging reasons. Nevertheless, odds are we never appeal to it in practice. So, we are better off removing this setting as well."
Everything was going fine until I got to this point. You can't tell when you'll need to adjust the log level on the fly and he's right in stating most likely you'll never do it, but when you need to do it you need to do it - and predicting that need is impossible. This is one of those rare things where it's better to have it and not need it than to need it and not have it.
Otherwise this is a good article on addressing the issue of configuration hell.