The article isn't saying that YT Premium for ad removal is going away. It just says that the YT Original content is going to also be available via an ad suppor

The article isn't saying that YT Premium for ad removal is going away. It just says that the YT Original content is going to also be available via an ad supported model for non YT Premium subscribers. Its central claim is that YT couldn't make compelling case for original scripted long form content to be a selling point for the premium subscription, mostly due to it being dominated by short form content.