LOL love your new signature Lenders
I don't really know what to say about Ferrer's statement. I think he's being realistic as always. You could see it as a lack of belief, but I don't know... in a way, that's how he's got so far, by not having unrealistic expectations.
I'm not among those who think he has completely maxed his potential and could not possibly go any further. I think he still has room for improvement, especially mentally...
But it seems obvious that unless he gets a little lucky, he has very little chance of winning a Slam. So overall, there's no point in saying "Yes, I think I'm going to win a Slam next year", given the odds.