You're basing this on where he was ranked at on a recruiting site? If so, I think you're doing it all wrong. Furphy is a part of the NBA global Academy in Australia, the same program that develop Josh Giddey, Dyson Daniels and Josh Green. He's been the best player in that program, which is why he had high major offers outside of UConn.
Here's what Sam Vecenie said about him:
Had a great day at the Australian U20 Nationals.
Best player I saw: Jacob Furphy (not related to Johnny). Just an absolute hooper. Tough as hell. Competitive. Winner. Insane hoops IQ. Super skilled.
Felt same way watching him that I did the first time I saw Jaime Jaquez in 2018