If the company has a goal to make more money every year, then you can justify a lot of actions in that pursuit. And once they have a monopoly you kinda don’t have many options, so they can push more.

Saying they have a responsibility to keep you on the app may sound silly, but app user churn is most likely measured and has some goal around it. And if a goal is set around that churn then they very much have an obligation to keep you on there as long as possible.