I like some of the stuff in that book..... When you ask when they want to come out of the bath, you give them options. You don't let them pick the time. So, do you want 2 or 4 more minutes? But you ask it in a way that makes them think they are really choosing. So I go into the bath and say," you about ready to get out? How many more minutes do you want? 2 or 4?" My 3 year old usually just says "I want 4 minutes." Then when it's time to turn off the water, give another choice: it's time, do you want to turn the water off, or shall i?"
When I ask my daughter to get ready to leave the house, she will sometimes say to me, " can I have two minutes to finish what I am doing?" Before, she would just ignore me. Now she at least says, "hey mom, I'm playing with my fairies, can I finish up real quick, and then we will go?"
The idea behind love and logic is that YOU decide when they must tow the line. So on top of safety, management of a schedule is a must for many of us, especially when trying to get three little people in bed. The enforcement is the key here. To enforce by Love and Logic, I let time itself do the enforcing. With my kids, I set a limit: lights out at this time, if you want books, you need to be ready for bed (PJs, teeth, toilet), or you won't have much book time. I let them know how much time they have left, and I let them know that if they'd rather do X than Y, that is fine, but they can't complain when they have no book time. It's "their choice" how they use their time, but there is only so much of it. Does that make sense?
In short, you let your kids make choices all day but you get to pick the options, and you should select options that you can live with ;-) I find the Love and Logic approach to be a super manipulative way to control kids. I don't see the "Freedom" aspect, instead, I see you setting the options, and them having to make choices within them.