YouTube is forced to display the “Advertisement” mark
They’re forced to identify that it’s an ad, but they don’t have to do it in a machine-readable way. There’s many different approaches to show an “Advertisement” or “Sponsored” label that appears to users but that blockers can’t easily find.
If they don’t link to the advertisers page, they’ll lose advertisers, which is the last thing YouTube would do. Legally, a video-embedded “Advertisement” indicator could work, but the link to the advertisers page remains.
They’re forced to identify that it’s an ad, but they don’t have to do it in a machine-readable way. There’s many different approaches to show an “Advertisement” or “Sponsored” label that appears to users but that blockers can’t easily find.
If they don’t link to the advertisers page, they’ll lose advertisers, which is the last thing YouTube would do. Legally, a video-embedded “Advertisement” indicator could work, but the link to the advertisers page remains.