A lot of people seem to be missing the main point here. I don't think the article is actually advocating developing for Android and NOT iOS. I don't think it is even particularly advocating releasing on Android first. However starting your development on Android - as your first way of prototyping and finding your MVP - gives you a tremendous amount of agility and flexibility. You can create as many APKs as you want, send them to whoever you want without any fuss and they can test them out. You can fix bugs or implement features for just one person and send them the APK the same day. You can integrate your app with the OS and other apps in ways that are impossible on iOS to find what really works and matters to your users. And you can do all this for virtually zero cost on commodity hardware with free tools.
In other words, even if you believe iOS is ultimately going to be your primary platform, there's still a strong argument to do your initial prototyping and development on Android.
In other words, even if you believe iOS is ultimately going to be your primary platform, there's still a strong argument to do your initial prototyping and development on Android.