I don't think it's fair to discount the captain's picks because they're older guys either. If he picked Fowler or someone and they lost people would be bitching about him not going with experience. Look at Raymond Floyd in '93. He was 51 and played great. It can really go either way, especially in match play.
Fowler was picked two years ago and refused to lose coming down the stretch then, giving the US a chance at the end. Also the only guy to stare down Rory Mcilroy in a playoff and go right back out and win it with a birdie. He has also been seen winking at Rory after ripping a drive down the fairway right in front of him while he is waiting/watching right there on the tee box in the group behind. Some of these old dudes are just in awe of Mcilroy. Rickie Fowler is not one of them and he enjoys trying to get under his skin. I'd rather add another young weirdo that can go all five rounds if he gets hot than a veteran or two that can't get hot to start with and even if they did are too old to go all five rounds. A lot of golf in a short amount of time, young man's format.