The special, which premiered on HBO Max on May 27, was accused of ignoring the show's long-criticized diversity problem.
But in an interview with the Times published on Sunday, Winston said he believes those criticizing the special for a lack of diversity haven't actually seen it.
"What more diversity do they want in this reunion?" he went on. "The cast is the cast. It was made in 1994. I think it's remarkable how well it does stand the test of time."