Obviously recency bias is legitimate, but imo most of these players are going to come from the Tiger era, due to his dominance. Someone like Garcia who came onto the scene in 1999 effectively played the 1st 10 years of his career with Tiger winning a third of all majors. Ok, so Jack won more, but this was over a longer time period and imo the depth was not the same back then.
Now it's fairly common to have 4 different winners of majors and often 3 1st time major winners in a season. Look at the past few years with Garcia, Reed, Thomas, Molinari, Woodland, Lowry, Willett, Walker, Stenson and now Morikawa. All new names in terms of majors, some younger, most will only win, 1 but I don't think anyone would argue these were fluke wins like a Ben Curtis or Steve Jones. Maybe Willett got a bit of help, but he's still a quality player who will win and contend in other big events.