It's clear from the article that Charles never gave this story to the press. Harry had lied to the palace press office that he'd never done cocaine. The palace took him at his word and issued a denial. The News of the World came back with evidence.
So Harry got them to that point.
The article says Mark Bolland couldn't lie and say he wasn't into drink and drugs. They had evidence he was. Even Harry says he was. So Bolland told them that Charles had taken him to the rehab centre to scare him. Which kiboshed the implication that Harry was a resident.
Harry contradicts this and says that it was a "typical part of (his) princely charitable work". 🙄
I mean, do you seriously think a rehab centre with serious drug addicts in attendance allows a 26/17yo on its premises for a chat without parental permission? You think Harry came up with the idea of visiting the centre on his own? Of course Charles had a hand in it. Otherwise why would Harry be feeling happy to start reveaing his drug use of much more than just cocaine and cannabis to these strangers on an official visit? He's just issued a denial to the papers and he thinks no one there is going to sell his story?
And what is this extensive list of princely charitable work he was doing at 17?
The problem when you tell so many lies, is it's hard to keep them straight.
And if this story rehabilitated Charles, that must be because he did the right thing. That's a good thing, isn't it?
The only other things the article talks about regarding family, is Prince Edward and his production company disobeying palace instructions to the media to leave St Andrews after the photocall. Instead PE decided to try and invade his own nephews privacy by staying around. Naturally Charles was cross.
And, of course, the Camilla/William story, which has been roundly debunked.