Someone live streaming is well attuned to the dangers of exposing personal information on screen, and will hesitate before ever typing a password while streaming. They'll either disable this feature or open a root shell before beginning their stream.
Besides, I can just amplify their stream to hear their keypresses.
> Someone live streaming is well attuned to the dangers of exposing personal information
You actually believe that every person in the world who shares their screen is aware of computer security best practices? Or are we only limiting this generalization to every one of the millions of YouTube/Twitch livestreamers?
> I can just amplify their stream to hear their keypresses.
Maybe if they have Cherry MX Blues? A normal keyboard would not get picked up by modern apps' recording noise suppression (the filters are designed to eliminate the sound rather than merely lower volume).
This is really a non-issue, all password fields behave this way, so it's not like this is a new computer behavior. This change only aligns sudo to literally everything else.