Chong made his Champions League debut this week for the dramatic win at PSG.
Makaay told De Telegraaf: "It was clear that Tahith was a rare talent. An all-round winger.
"Skillful in possession with individual actions and very fast."
On his move to United, Makaay added: "We had seen it coming, though. The conversations about his first contract simply took too long.
"Against the financial violence of Manchester United, you just can't fight it. It was a blow."