Bad analogy. Like, really bad. I don't think someone saying they aren't ugly compares with telling people that you're a top 5 player in the world, when there's a system for determining that, and you clearly are not. It also doesn't compare to rattling off every single accomplishment you've had since you were 12 in a 60 second post round interview, and then REPEATING that you're a top 5 player in the world, when even after your victory, you still are not. Worlds apart from your silly analogy.
Saying you're a top 5 player when you're not( regardless of if you've played long enough) is not "confidence." It's just incorrect. I think that when a professional athlete ignores a statistical system and puts himself ahead of his peers, that's 100% immature and arrogant. Imagine if the Broncos were in 3rd place in the AFC West and in a post game interview, Peyton Manning said, "we're the number one team in our division". People would say, huh? No you're not. You're in third. We have a system for that. Same thing here.
Not sure if you agree with this, but what miniscule research I did seemed to coincide with the plots and the trends that are show in this article.
Like Luke Kerr-Dineen said, if the trend continues, it won't take long. His playing field is also much harder than in the past.