[libertine]

This was, and it's just confirmed after this statement, the justification and results for this action: hiding dislikes improved watch-time overall on youtube.

Like she said, the problem wasn't the getting in the way of choosing the video, but for bouncing out of it.

No dislikes, less bounce, more watch time, less time spent on other platforms, more revenue from advertising.

Basically they are sugar coating potential crap to feed to their users.