I like them, I think the players like them and I'm pretty sure the gallery loves it. I like holes that'll have pro's hitting different shots off the tee. There is no rule that says they have to hit driver. They can hit two 8 irons. Without looking I'm sure somebody layed up today. Its better then no brain set ups.
Yang's chip in was a great shot, and the course set up or the fact that he was greenside on a par 4 changes that.
I do agree that the holes that are designed to be shorter par4's are better then long par4's that are just played from the ladies tee's.