You are correct, but it appears that some of this occurred before all Scout Leaders were required to take Youth Protection Training on a regular basis. The training also emphasizes that enforcing the Buddy system protects the leader from unwarranted charges from a disgruntled scout. I've always made sure that if I was alone with a scout, it was my own child.
Boy Scouts are also required to take training for their own protection, I think it's called "A Time to Tell."
A tiem to tell and It happened to me a great productions. One for elemetary school age and one for the older boys. It should be noted that anyone who deals with youth can and should use the Scout Youth Protection videos and movies. See your local Scout office for more information.