I'm assuming you're referring to Django Rest Framework? It's one of the nicest API frameworks I've had an excuse to use professionally. It's easy to see why.
I experienced this first hand when I first started doing timed coding interviews and didn't prepare my DRF environment. Rookie mistake for sure, but it really emphasized to me that things can be difficult to find in there unless you know exactly what you're looking for.
In the long term, with a lot of complexity and a large organization, a more mature architecture that relies on components that wrap tables, composed together to form components that wrap business logic, which are composed into endpoints. Something like that is much easier to test and more scalable for disparate teams to step into and understand.