All the hillbillys generally do is hook them off the ground and into a bag with the help of another. In my opinion that doesn't prepare you for manipulating all different types of venomous snakes (mambas, najas, ect) in and out of cages without stress or harm to you or the snake. Also, rattlesnakes are somewhat complacent and hook fairly well.
However I don't have a problem with people who have little experience and pick up a hot, that's their choice. A friend of mine who only had experience with a ball python once bought a beautiful green pit viper. It was wicked and fun to look at, but my friend ended up bringing it back to the breeder himself because it was just too mean, scary, and fast to work with.