Actually it did say no personal beverages of any sort as of March 12 when Sonny last posted about it. However they have changed the wording of the on-line Q&A to remove soda and water as being banned. That said, the Guest Conduct Policy still says:
"Guests are not permitted to bring alcoholic nor non-alcoholic beverages onboard and Security may inspect containers (water bottles, soda bottles, mouthwash, luggage, etc.) at any time. Alcoholic beverages that are purchased from onboard shops or in ports-of-call (which must be presented to security upon re-boarding), will be secured by ship’s personnel and delivered to the guest’s stateroom just prior to the conclusion of the cruise. Guests who are under the permitted drinking age will not have alcohol returned to them."
They need to get their policy straight. I think they went a little "overboard" with it to begin with and are now trying to back off a bit with the language for "cruise appeal" purposes.
The main thing to go by is the cruise contract as cruise lines change (and fail to change) the wording on web sites often. Some of this is coming from the Homeland Security rules. I had to drink or pour out an opened bottle of water at the Jacksonville Port last October. Then I checked half a case of Spring Water without a hitch on Carnival.
Some consistency would be in order for bringing water and soda on board. Here is a link to the current Cruise Contract they have on the site.
It was a silly change, and perhaps they are revoking it but haven't gotten around to revising the conduct policy yet. RCI has long had one of the most difficult websites and it never seems to be current.
I have no doubt the original idea was to push sales of their new water and juice packages, in addition to the soda package. Generating revenue is fine, but at some point you have to throw the flag and say "oh come on".
They sell diaper packages too, so perhaps the next step will be to ban passengers from bringing their own diapers and wipes! "You MUST buy them from us!"