After the story became public he did. Why?
Maybe I'm reading the article wrong but from what I see, Kuchar didn't offer the extra 15k, his agency did trying to do damage control. It was just ultimately coming out of Kuchar's pocket.
Kuchar seemed slightly embarrassed that the additional sum had been offered, as he felt his financial obligation to Ortiz was complete. Asked how it came to be that the additional sum was offered, Kuchar said, “That was the agency.” He was referring to Excel Sports Management, which represents him. Kuchar’s agent there is Mark Steinberg, who also represents Tiger Woods and Justin Rose.
Kuchar was asked who would actually pay the money.
Kuchar smiled and said, “It’s not coming out of Steinberg’s pocket.” In other words, Kuchar would be paying. He said the additional proffered payment was Steinberg’s effort at damage control.