"Who did they mislead? They just changed their minds a few days later and words aren't what you think they mean. Here's the team's PR statement containing assertions about the 1M lines of code they never reviewed."
It's unfortunate that this is what some call "engineering" while labeling actual science and engineering as "politics."
yt-dlp is under no obligation to keep using a dependency from vendors that instantly flip flop and re-frame their own words and actions. That's what actual due diligence and responsible engineering looks like.
I suspect this thread won't go anywhere.
Something that's experimental can receive further changes and then no longer be considered experimental.