Yes, google has no excuse not to know better. They did know better in fact, it's a selling point of their competing product. Corporations their size will typically run anything remotely important in house on their own machines so that they have control over it for exactly this sort of reason. Failing that they'll put contracts in place that specify notification periods and remediation steps so that the rug can't be pulled out from under them. Google knew this could happen and went ahead anyway, they accepted the risk and now they have to accept the consequences.

And let's not forget that google weren't working with apple, they were working around them.