It's usually less to do with whether automation works and more to do with having an internal party to hold responsible, when it comes to these things.
Google doesn't need an internal party to hold responsible for the concerns of free mail users or their own contractors who are called "content creators." In part because Gmail users and YouTubers don't lead fortune 50 companies and play golf with Google Execs like Google Cloud customers do.
Gee, you mean we just discovered that area where Google admits that either automation or machine learning does not actually work?!