It’s worth considering that we are at some sort of inflection point in Google’s business. Is it a “Microsoft Moment”? I have no idea. The parallels are there, even if they aren’t and could never be 1:1. Nevertheless, it’s at least interesting the pressures on Google.
Of course, if and when it’s all clear, it’s too late. Like many things in economic life, decline happens at first slowly, and then all at once – and is usually missed until it’s already happened, and then, of course, it is declared obvious.