Google doesn't work that way, and in general a corporation pretty much converges to a point where they will put resources on wherever there's dollar.
You are underestimating the big picture, which is - google is really left between apple and regulations (gdpr, ccpa etc) pushing privacy front and google have no choice but to go in this area.
"...will put resources on wherever there's a dollar."
Yes, but it may be that they've decided there's no dollar here. Or, to put it another way, they get that dollar whether they track your browser history or not, so why bother? It's more like cutting corners, which corporations are most certainly willing to do, but in this case we like it (but that is probably only incidentally of interest to top executives).
You are underestimating the big picture, which is - google is really left between apple and regulations (gdpr, ccpa etc) pushing privacy front and google have no choice but to go in this area.