Not really a fluke though, paolo, and an article cobbled together from others and from an organisation with less credence than Sportskeeda.
Though the article states nowt wrong with being a slam one hit wonder and how fairly common on the womens side.
Her getting to the last 16 at Wimbledon two months before the US would be considered a fluke if she never repeated it. But she did and yes, got a favourable draw at the US as others knocked seeds out, but she still had to beat the woman who beat the woman. And in the final she beat Leylah Fernandez, who had beaten three top 5 seeded players on her way to the final.
Much to criticise Radacanu for, as mentioned her inability to keep coaches, her father and her making as much coin as possible off court, but it's a tired and lazy trope to say her win was a fluke.