The ship in the drydock show recieved alot more attention then the Triumph will. The RCCL ship featured on that show was getting a $25million refit- it was long due for one! The most you might be able to notice about the Triumph is new carpet (in some areas) and just replacing some broken things- nothing as extravagant as the Sovereign Of The Seas!
So basically, dont just book the Triumph because of the drydock! I sailed on the Victory a couple of years ago, and its just as good as a ship- exact same layout and all!