A teenager plays her first ever grand slam, does well, plays her second (US Open), wins it; yeah, WINS IT. ok, possibly a fluke plus some very fortunate absentees. BUT she still won it. Thousands of players play their entire careers without ever winning a single grand slam.
She is still only a teenage and regardless of her current form, she will win more tournaments sooner or later. And if she doesn’t, she would still have achieved more than most, in winning her 1 x grand slam.
One hit wonder? so what? that is still one hit more than several other players!
Knowledge can improve the world we live in 