Paul, That is certainly not what I got out of it. What I have understood, if you book May 17th or later you are entitled to whatever price drops happen if any. When you reach final payment date you pay whatever you booked at or were reduced to and that is they end of if. No more changes.
Certainly I'm sure they do not intend to raise the price of your cruise if you don't pay til the day it's due if the price has gone up. In that case no one, and I do mean no, is going to book a cruise with RCL and company before the last 30-60 days. It just wouldn't make sense if you are not locked into the rate you booked at.
Anyway, I will be on the Solstice on Sunday for Seminars. I will most definitely be querying this new program and see exactly what the truth is.