This is simply false. Apple's deal shares more revenue with the artists than any other service. Therefore if users adopt Apple Music, the artists will get more in aggregate.

http://recode.net/2015/06/15/heres-what-happens-to-your-10-a...

My point is not that I believe that Apple should keep the excess profit. It's that if Apple's service increases the overalls profit for the artists it's reasonable that they should share in the costs of marketing. Otherwise the artists are double dipping.