I am relieved that (maybe) common sense has been applied to solve this non-problem. Or Google foresaw a PR black mark that wasn’t worth tarnishing their reputation.

And yes, the wording of clause 10.4(c) or whatever appears to this non-API-savvy reader as what is generally known as “horseshit.” It all depends on your definition of implementation, I suppose. And my impression was that public APIs are offered to encourage implementation. But WTF do I know?