A lot are complaining about the new interface. If the 703 or 704 were working fine on your end then you use that instead of the new update. Max developed the app based on what he thinks would be in line with the material design. Yes some audiophiles doesn't need those fancy animations and the new interface but most users now before downloading an app on the playstore they browse first on the screenshots or pictures provided. Max didn't just updated the app for the current users but also he developed the app to entice users who never tried it and a good looking picture and interface attracts more people. Me, I tried neutron player but I'm not a fan of the interface so still my go to is Poweramp. Max needs still needs to earn and more customers who downloads means more income. He didn't left out those people who already bought it, he complied to their requests and also made the app more enticing for new buyers.