The suggested purpose of knowing that information is not so that you can correct the situation, it's so that you don't look foolish by sending links to videos t

The suggested purpose of knowing that information is not so that you can correct the situation, it's so that you don't look foolish by sending links to videos that your audience can't view. Not showing the video in the YouTube interface is only a partial fix, and an unrelated one at that. The use case in consideration is tweeted YouTube links; it's not like YouTube can just switch to a new video because the one which you navigated to isn't available.