This proposal stands out:
What do you thinkFor me, I always use the NoScript icon >> "Blocked Objects" >> "Temporarily allow *@https://www.youtube.com". This requires only 1 click and enables both audio+video (whereas with click-to-play one has to individually allow video and audio).
However for non-technical persons this isn't obvious at first sight. Fixing this will involve having to change NoScript's UX so that a "Temporarily allow videos and audio from www.youtube.com" shows up that the user can easily understand and toggle to meet his needs.