theme_weight_node_admin_nodes impossible to override

Because of the fact that the theme registry is altered in weight_theme_registry_alter -- there's no way to override theme_weight_node_admin_nodes() in template.php.

Therefore, you are stuck with a weight column on the content overview, even if you don't want it. This is a bug IMO because theme functions should be override-able. However, this could also be a feature request: can there maybe be a setting in the admin pages to say: "show weight column in the content overview?"