I agree with farrar. I am thankful I have a 7 yo that LOVES to read... he likes to ride his bike, beat up his brother, and wants to go hunting. But speaking with others they have a hard time getting their boys to read; so Captain Underpants is a blessing if they read it willingly. My guy will read Minn of the Mississippi, books on trains, submarines, music, he LOVES Calvin and Hobbes and Garfield. Yes I like to read the classics with him because the vocabulary and grammar are superior (most of the time). What is wrong with light reading from time to time... I love historical romances to "shut down" with from time to time. There are still words I can learn.. my mind is working.
I hope her books are good and engaging for the boys... we read all of the Little House series over the summer.. then 6 yo and 4 yo boys. I do wonder if she can reach them like a man could. There are a lot of things I don't get; because I am a woman!
The info they used was what is out in the world... many of our kids aren't going to fit that mold...that's why they are home. Some might be worse...may be another reason they are home. I think if they can impart even a little history into the books then more power to them and kudos for trying.