That was a Times of Israel reporter Emanuel Fabian [1] but your point stands.
Prediction markets create incentives to predict the outcome of an event, which can be done in one of three ways: develop better models to predict the event, affect the event, or affect the reporting on the event.
[1] https://www.timesofisrael.com/gamblers-trying-to-win-a-bet-o...
“The best way to predict the future is to invent it.”