Okay given the false equivalence between Android and PlayStation; blanket dismissal of modern best practices of hardware security modules for software validation, at rest encryption and authentication and biometrics protection; and ignoring my points about the expectations and requirements of app developers... it seems clear there isn't really much opportunity for a discussion, so I am going to bow out.
@hackbod You still have not explained which threat Google Pay protects against by verifying that the mobile is untampered, but not checking that the security patch levels are up to say in the past 12 months.
And yes, Googlified Android gives App developers the tools into their hands to validate the whole system chain starting with the boot loader to the app. You call it “best practices in hardware security”. I call it Playstation style lock down.