The quality of their product degraded and they just kinda... did nothing about it for awhile. It got so bad it had to turn into a press thing before they did something about it. The press is damn lazy, so for my money, that means something.
As to the rest – I share you admiration for that kind of gumption. Money can so easily blind and poison progress. So the strategy to continue evolving is sound! The tactics, though, are dubious.
I'd say that any changes to search need to be made with relevance, convenience and user satisfaction as inviolable factors. Anything else is playing with fire in a library, if you're Google.
Or maybe not. We'll see.
I just really want my 2007-era Google search back.