I'm not sure what the expectations is supposed to be. Is Google supposed to have 100% adoption rate? Even OpenAI and Anthropic don't have that.

I have managers asking similar things at work: how can we increase AI adoption in dev teams? Why though? How does it benefit the manager? How can we increase the vim adoption rate for dev teams?

Google has thousands of mature products. You don't just throw a single solution (AI) to all problems.