I disagree with this in principle. Gamification is something we should be very wary of because it is inherently bad. It reduces what you care about in an activity to points and a progress bar.
Instead of sticking with language learning because you have some intrinsic reason to want to learn it (or even a external one such as wanting a new job) you're substituting that with whatever Duolingo puts for their gamification. To the degree you engage with and are motivated by the gamification you are substituting your own metrics of success and progress for points and streaks.
And soon enough we end up here, where Duolingo has gamified their internal numbers and in doing so gamified your "learning".
If the gamification is fully disclosed, I don't see the problem. People should be able to agree to game themselves, if it helps them complete a task they otherwise wouldn't finish.
But consent is key. Maybe we need regulation that compels companies to disclose these manipulative techniques in digital services. Give people the chance to opt in or out.
I was super skeptical about a year ago. Copilot was making nice predictions, that was it. This agent stuff is truly impressive.
But! There's still room for expertise. And this is where I disagree about swimming with the tide. There will be those who are uninterested in using the AI. They will struggle. They will hone their craft. They will have muscle memory for the tasks everyone else forgot how to do. And they will be able to perform work that the AI users cannot.
The future needs both types.