If there was an ORM that dealt with everything but a flaky end of life database, sure start working on it.
But this is advocating picking one platform. Like creating Chrome-only JavaScript. I guess the nearest thing with Electron.
Yeah the analogies breakdown at some point.
I don't think anything is black-and-white. I just think the vast majority of Django apps are fine with Django's ORM. This article smacked of premature optimisation.