I forget who it was now, but years ago I was reading an overseas Survivors blog who stated that he used his peripheral vision when hunting for idols and actually saw out of the corner of his eye, the cameraman pan the camera towards the idol as he walked past it.The person who really needs the idol to survive always looks the hardest. Plus they don't show boring footage of everyone looking every episode. It's the same on US survivor, someone who would otherwise be voted off at every tribal often goes on an idol-finding spree, because once you've found a couple it is easier to predict likely places, and because when you're desperate, you don't stop looking.
I also think given Simon went out with two idols, there really should be more idols out there by the nature of the game returning idols as they are played or left with the player unplayed. So it is not a surfeit of idols for me. Anyway, as it's George and/or Cara finding them, I am not unhappy. Kez kept finding them earlier on in the game and no-one squealed about producer plants; Simon found two in short succession, also. Some people just have an eye for detail...and with no jungle foliage, the sorts of hiding places traditionally used are less available.

Subsequently he fluffed around for 5-10 minutes in an attempt to make it look like he didn't see the cameraman give it up and miraculously found the idol haha ...