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.

Guido always took the role of gatekeeper and arbiter (I'll consult with the community and decide what submissions go in) rather than a true dictator (I'll decide what goes in... submissions? What submissions?).