Agreed, I just got off Brilliance 4 weeks ago from the Norway Fjords cruise and these concerns are completely inappropriate - I have very high standards (Diamond Plus on Royal Caribbean, Platinum at Starwood Hotels, etc.) and would sail Brilliance again and again. I sailed her in 2005 and this year and found her in the same good condition.
Say hello to Julie from the cruise staff as she is fantastic! If you're in a suite, Betsy (concierge) will certainly handle any concerns. Absolutely do not cancel.