I don't understand what the all negativity over these changes is about. Has a significant amount of mainstream Android features being incorporated into play bee

I don't understand what the all negativity over these changes is about. Has a significant amount of mainstream Android features being incorporated into play been from the ecosystem, rather than Google? If so, I can see how this could result in a worse end-user experience. But if not, how does providing timely updates and a less fragmented ecosystem such a horrible outcome? Feel free to enlighten me if I'm missing something.