Intent-driven ads are far more relevant to a site's audience than hand-picked, static ones. They have much higher CTR and conversion rates, when done right. You're asking sites to remove sources of income that people find relevant in exchange for ads that some higher up in marketing thinks relates to its users.

Not all publishers subscribe to the low quality Google AdExchange. In fact, they typically have a variety of ad bids, and the highest bidding ads are chosen for placement programmatically.

Edit: I just visited vogue.com. Guess who served me my ad? doubleclick. It was relevant and I bet it was programmatic. Programmatic does not mean random. Ad placement programs have a lot more data to work with than any individual at the publisher. There's a lot more sense to it than manual prediction