I guess the most important distinction is the “B” part (benevolent). Guido is called that because he is known (since before BDFL is a thing) to listen to other people, and adapt when they disagree strongly with his decisions. Google has never demonstrated the same attitude afaict, and in multiple occasions showed exactly the opposite.

Edit: And to answer the question, no, there’s no philosophical differences. And there’s nothing wrong with that. Python never called itself a community’s language (there are instances core devs said in no ambiguous terms that it is Guido’s project). The problem only arises if a project gives an impression that it is owned by the community when it actually isn’t.