While google definitely has issues, this aint the root cause, even if there where only one root cause.
I think this begs the question, why should we expect AI adoption curve of Google devs to be any different from any other company?
Adoption, has been pretty rapid everywhere from what I can see, the tooling itself is still fairly unstable as everyone is rapidly iterating.
The productivity gains are there, but they seem much more modest than people like to admit (10-20%).
Yeah Google has a fundamentally broken engineering organization because some influencer dude thinks they should vibe code, with technology those presumably incompetent engineers substantially invented.