> the only reason it’s video is to show you ads

Looking at those video lengths, I'm inclined to believe you.

Any video that is 9 to 11 minutes long, I automatically skip because that's the sweetspot length for maximizing ad revenue. This person's are a bit longer, but looking at the video subjects, I can't see why they need to be that long.

>Any video that is 9 to 11 minutes long, I automatically skip because that's the sweetspot length for maximizing ad revenue.

I think that may be outdated? 10 minutes was the sweet spot for ad revenue a few years ago, but I think around 8 minutes is the sweet spot now.