I don’t think Apple Music for Android was a play for Android users. It’s more of away not to be at a disadvantage when Apple is trying to sell a Family Plsn for Apple Music to a family of mixed Android/iOS users.
Back in the day, people didn’t realize the competitive advantage it gave MS to have a version for Macs. They could sell into large enterprises that may only have 5-10% Macs with a cross platform offering. Their competitors couldn’t.
You're absolutely right! And I hadn't thought about MS Office for Mac in that way before; thanks!
My comment was more geared towards OP's "well, now they're going to cancel the Android version" when Apple literally just released a new version of Apple Music for Android with platform-specific features: https://www.macrumors.com/2018/09/19/apple-music-android-aut...