I've had earnings a few times since the update. They've made the duration variable as well as the amount. One time I was getting 1 sat/min for 30 minutes. Another time it was 1 sat/min for 20 minutes. Plus, one time I actually earned a few hundred sats, but I didn't check it in time to see what the rate or duration were.

I think their team knows people care about this and earnings will be a bigger part of future development. My understanding is that they were pretty focused on the UI and social improvements.