Paraphrasing Bruce McKinney on Visual Basic (who was probably paraphrasing someone else): "Django-based CMS systems make the easy easier and the hard impossible". I worked with Django for about 4 years of my life, maybe more if we consider some proof-of-concept projects. Every single 'framework on top of the framework' (with the exception of Django REST Framework) I've tried has been 'almost perfect', but that little…
For a site with a handful of pages and a single author who's happy to use django.contrib.admin I agree with you that plain DIY Django will probably get you there more quickly. But Wagtail (and other Django CMSs) gives you a lot more than that: - a fast, intuitive content authoring experience - preview / submit / moderate / publish workflow - a UI which scales to very large numbers of authors, pages, images - powerful…
Sorry, I didn't mean my comment to come through as criticism to this particular project. I meant it as a more of a warning to people who might be tempted to use such a complex system for something like running a small few entries in their website. Chances are the effort to integrate it would be bigger than just writing a minimalistic thing in the existing codebase.
I agree that systems like these have a place if what you want is something akin to Drupal (but with a nicer codebase.)