I can definitely see their reasoning, but like you, I don't like it. There's times where I really just want to listen to something and not need the video without it being music.
As for the Picture-in-Picture, there is a somewhat hacky solution. If you go to the video in Safari and install Pipifier (https://itunes.apple.com/us/app/pipifier-pip-for-every-web-v...) you can use it to start Picture-in-Picture. I don't use it that often due to the extra steps involved, but it does work.
As for the Picture-in-Picture, there is a somewhat hacky solution. If you go to the video in Safari and install Pipifier (https://itunes.apple.com/us/app/pipifier-pip-for-every-web-v...) you can use it to start Picture-in-Picture. I don't use it that often due to the extra steps involved, but it does work.