Yeah, you would think that people would be able to cut players more slack for getting tight/choking because it seems like a very normal thing to do. I mean, you don't even have to get that nervous or anything to play worse on a big point, all you have to do is lose concentration, think that you've done all the hard work, etc then it goes bad. Which is so easy to do when you get time in between points to think about things.
It's also pretty hard to be consistent on a day-to-day, week-to-week basis, and I sometimes think there are some overly high standards here. When a player isn't as good as they were when they went on that great run but still doing quite well, they act as if they're in a major slump. For example, Ferrer in the beginning of 2008 still did pretty well in the AO and leading up to the French. It just wasn't as good as the US Open and TMC 2007. It could be worse, you know. Sometimes seeing someone having a slump at the scale of Baghdatis' now (considered one of those players that had a lot of natural ability), seems to put it all in perspective.