She misrepresented the facts and said she was just under 18 and it turned out, apparently, she was just over 18. You can't expect the media to conspiratorially keep it hush-hush and not report on what she said. That's not how it works
Patrick Brown was thrown out as Ontario PC leader because the accusation that he'd sexually preyed on a high-school girl was so inflammatory that he was deemed completely radioactive to the party.
And then when the truth comes out, we find that the real story is that an unmarried 28 year old man met a 19 year old woman at a bar and they went back to his place. Deprived of the sensationalist "highschool girl" aspect, the story is such a non-story that one has to wonder why CTV was in such a rush to publish a story that they hadn't finished fact-checking.
Here's Gerald Butts, of all people, talking about the situation last week:

One of the strangest things about Brown's execution at the hands of his own caucus is that it was far-right kook and Nazi-adjacent scumbag Randy Hillier acting as the axe-man:
https://www.macleans.ca/politics/the-phone-call-that-ended-patrick-browns-leadership/Gerald Butts hit a key point in his tweets: this "clusterfuzzle" ultimately just undermines the credibility of real victims of sexual harrassment. Ultimately, #MeToo was derailed and disgraced by people like this. They took something that was supposed to help women, and maliciously exploited it for cynical purposes, and played a part in tearing it down. It was disgusting and it still is. The people involved in this should be thoroughly ashamed of themselves.
This is CNN journalist Ashleigh Banfield, talking about salacious but insubstantial accusations made against Aziz Ansari. Just change the name "Aziz Ansari" to "Patrick Brown" and she could easily be talking about this accuser as well.
https://www.youtube.com/watch?v=y4bAULTwAJU -k