>Note that all this anti-tamper protection is, in the end, an effort to protect users from others hacking their devices and gaining access to their apps. These measures do not help companies per-se, since user commands should ALWAYS be verified server-side.

This is the stated reason, but the behavior of it is anything but: if they really cared, they would fail massively outdated versions of android that have critical remotely exploitable vulnerabilities, but they do not. It is also much easier to tamper with a ROM slightly and have a version that passes these checks, compared to having a secure, up-to-date, maintainable ROM that passes.