Could you elaborate? Other CMSs have nothing similar? My feeling is you can make an okay site with WordPress plugins only, but to make a great site you require custom code and should avoid most plugins to avoid bloat and security issues, and at that stage I'm not really sure how WordPress helps you in a way that's exceptional. The admin interface isn't particularly intuitive or modern, and has a lot of baggage, and the same could be said about the PHP API too.