Given that Github is now big enough that Google is hosting their code there, I think that view needs to be a bit more nuanced. Yours is a very slick reply that could easily be a boilerplate one for, say, privacy concerns with Google -- "Hey, it's their service, they can do whatever they want".

That's fine, but if they subsequently publish a Transparency Report that isn't very transparent about some things, it's probably a good thing to call them out on it. Would you agree?