After upgrading from 0.91.4 to 0.92.1 and making the config.yaml change to google_translate, the service calls are not left as goggle_say as per your PR, in fact they have to be changed to google_translate_say in order to work…
When looking in the dev panel:
and the old google_say service no longer exists.
EDIT: just re-read your PR and I think I get it now, there was an option to keep the old service call… however that isn’t explained in the docs