I think if you're the type of person that records youtube videos regularly, chances are you probably already own an external camera with specialized functionality.
How does that address the original point in anyway? This laptop's base price is almost $4000 USD. That's a lot of money to spend on a laptop and one would hope that it'd at least come with a decent webcam.
You can't unilaterally claim what people do or do not care about, though. That's reverse rationalization. A 720p webcam is however, objectively, third class in 2019.
Even then you likely want something better than a webcam, those cams are of such poor quality. Even if you get a Logitech C930 you're paying a lot for relatively little. They're not really meant (they certainly can be used for it though) recording as much as they are for streaming/conference purposes. Image quality there isn't nearly as important as it is for recordings. A cheap camcorder will likely give you a much better image quality. Or hell, get one of those LED rings that you can mount your phone in and you're better off.