The section on deprecation appears to say that the service may be deprecated without a deprecation period "providing the Deprecated Version of the Service could

The section on deprecation appears to say that the service may be deprecated without a deprecation period "providing the Deprecated Version of the Service could create a substantial economic burden as determined by Google in its reasonable good faith judgment". This is the explanation they used for deprecating the translate API, "substantial economic burden". Nobody is going to be able to argue against Google's "good faith judgement" on this point, so it sounds to me like this service could effectively be deprecated at any time.