Unless Google deliberately changed the enforcement of the policy just to mess with her, she should have known the policy. It doesn't seem to be a complicated process, and 2 weeks is a reasonably short time to wait.
On the other side, Google has been in this game long enough, that they must know a paper can be updated in this case. So there wouldn't be a misunderstanding there, either.
What exactly happened is unclear so far. But I doubt it will come down to just a series of misunderstanding.
On a side note, I suspect that working research for a company with a conflicting interest in the same area is generally a bad idea. At some point, the dilemma of either leaving or stopping caring about it would present itself.