It is BS but it does give them the ability to give an answer by saying these are the "rules" when they've already given all the upgrades to first timers.
When it comes to RCL, there is not much left to believe. The tell "tall tales" more than they tell the truth. They don't give a tinkers damn about their clients, just look at what they did in San Juan with all those people they sailed without.
They aught to be ashamed of themselves for the crap they spew.
I am a D+ but unless they are offering something I absulutely can't find somewhere else, I don't think there are any benefits to me to sail with them anymore.