It seems you have to do that here too though. In the end you have to deal with the headline the media can write about it.
If Netflix and Spotify went through the vetting process for the purposes of enabling an in-app email client the media could write pretty much the same headline.
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)
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.
If Netflix and Spotify went through the vetting process for the purposes of enabling an in-app email client the media could write pretty much the same headline.