In other words, the metadata service. The actual content servers are still up, so provided you know where the content is, you can still access it.
(Does anyone still remember when you could easily download videos from YT by simply replacing "watch" with "get_video" in the URL? I miss those days... when corporate greed hadn't gotten to where it is today.)
DASH isn't driven by greed really, it simply allows flexibly and seamlessly switching audio and video streams to vary quality. You can change resolution, and it still plays things continuously for you.
But it makes it hard to download, unless you stitch all that on the receiving end, something that youtube-dl does.
Greed and etc. were already piled on top of that with DRM, obfuscation and the like.
