Have been on enough SS cruises over 20 years to have free laundry et al, with several more booked ahead, so have seen changes, some good some bad, but none that would make me alter my loyalty. The cruise market as a whole has changed, especially post covid, and obviously all cruise lines adapt and consolidate.
For example I don't miss the personalised note paper we used to get, and if a fruit bowl becomes on request than thatvs no bad thing.
I use Regent too and they are in some ways better but in other ways worse - I'm not about to change my cruise habits, but I do manage my expectations to the reality!