I don't think the point here was to actually run these ads. They don't look like they'd drive a lot of conversion, and there's a big risk that quite a few would actually be inaccurate in practice - Facebook's algorithms, while they know a lot about you, can also be quite wrong.
But you can't see that in an article like this, and it's far more likely to reach the right people.
But you can't see that in an article like this, and it's far more likely to reach the right people.