After reaching out to the Play team, their feedback was that though application itself is harmless, since it ‘encourages users to void their warranty’, it would not be allowed to remain in the store.
We’ve seen hundreds of thousands of installations of the application, proving the demand for more choice, and that the need for an alternative Android experience exists. As we work through this new hurdle, we will continue to make available and support the installation process via our own hosting services.
Fortunately, Android is open enough that devices allow for installing applications via ‘Unknown Sources’ (ie sideload). Though it’s a hassle and adds steps to the process, this does allow us a path forward, outside of the Play Store itself.