That's a feature, though. If she's too disinterested in making other moves like reading books or the news, then at least she still has that base Duolingo moment

That's a feature, though. If she's too disinterested in making other moves like reading books or the news, then at least she still has that base Duolingo momentum that might make the move possible in the future. People always assume the alternative to Duolingo is that everyone will start a habit of reading BBC Mundo in Spanish or something, and it's obviously not true for many if not most people. And that's fine, some people are only going to scoot by with a dilettante level of interest until they take a real plunge.