Also depends on the size of the artists. I understood they have been classifying smaller / more marginal artists as hobbyists and not paying. The compensation that would have gone to them is then redistributed to bigger artists.
Of course considering how badly they pay I guess 1000 streams per song per year is very little money, but still it would be fairer to accumulate up to some minimum payout level rather then give it to others.
A better approach is one I think Tidal suggested some years ago - instead of pooling all the money paid by customers, dividing it by tracks played by everyone, and then compensating artists based on their number of plays: Do the same, but per subscriber. This would give more money to smaller artists with fans, and less to the artists in heavy rotation on people who play music constantly in the background.