[tety]

Google has strict licensing for what you can do with such data (almost nothing) and you have to go through an extreme vetting process

However, this won't generate the same headline because any company can go through it, and it isn't some API sold for some special privileged company. Also the user knows it is sharing their mails (not sure if that's the case with facebook)

[AnotherGoodName]

From the above post the Titan API seems to be an oauth API that's extremely vetted, hence the special name and why only spotify and netflix has access.