Google docs literally has the exact same feature and we're not even talking about it. Using the exact same OAuth framework as here you can grant Netflix and Spotify the right to read everything and all comments in your Google Docs. You can even grant them the right to read all your emails in Gmail!

In all seriousness i believe anyone providing oauth should just shut it down at this point, Cambridge Analytica was entirely users granting a third party oauth access to read their friends lists with an explicit permission dialog and all and it was a scandal that led to massive fines. The world decided that oauth access is not ok even with the dialogs prompting to allow third party access and at this point we as developers should listen and take it away. Google currently flys under the radar with the exact same access that led to cambridge analytica but they should probably just shut it down unless they want to run the risk of similar court cases.