I spent an idle minute the other day, reading reviews of other cruise lines. Many of those were similar to those of Cunard ships, complaining about falling standards since Covid, lack of staff, dismal food, disappointing service, tatty ship, etc. I suspect dissatisfied passengers are very prone to post reviews, and, if the experience starts off badly, putting a passenger in a negative frame of mind, they can always find plenty of minor faults to criticise.