They only care about engagement, as you need to keep paying for the premium service; otherwise, you will waste most of your time with the app watching ridiculou

They only care about engagement, as you need to keep paying for the premium service; otherwise, you will waste most of your time with the app watching ridiculous and annoying ads. I suppose they are concerned that if you don't use the app daily, you will not renew, and the premium service won't be worth it otherwise. But then you will have no streak, and will be in the first league, and friends won't like your stupid activities!