From flipping through the book, there's nothing about danger, though maybe some adventure, in the book.
Regardless, the title doesn't say anything for girls. It does play on a stereotype, but it's also a book that plays on much older stereotypes--as in, a lot of information in the book is the sort of stuff that was common with boys in the 1700-1800s, when stereotypes were not only prominent but enforced. Even the picture quality inside the book is reminiscent of something out of a Mark Twain novel.
IMO, this is not a modern book that says, "This is what boys and only boys should be." This is a book that says, "This is what boys used to be." I'm not even sure I'd call it a modern book, because of its style.
I'm against stereotyping as the next person (and I have very good reason to be), but I think you're either being oversensitive or like to pick this sort of fight.