Just because they are the owners of the ship doesn't mean they are immune to CDC and other government laws and regulations. In Florida non service animals are not allowed in food licensed premises.
Got off the Seaside a couple of weeks ago and the food quality and choices were not good. Pizza was better than what you find in Florida. Debarkation was the worst I've seen in many years. Entertainment was good, but theater itself was small with no drinks allowed in. Casino was small and smokier than most.
Only had one voyage in the CL as a Diamond before they kicked diamonds out and now can only recall one trip with CL access as a D+. Without the happy hour drinks, doesn't make much difference.
I would think if it happens a lot more the bean counters will put an end to it. Can't wait until the fleet is out of hock and things get back to normal.
Having spent 3 weeks on the Empress right before the "pause" I can say smaller ships are doable. A lot of that depends on the crew, the activities, and the ports. There was a very good CD staff on Empress which kept things hopping during down times.
I think most regular cruisers will remember the names of the good and the awful CD's for obvious reasons. Seems nowadays the turnover rate is a lot higher and a lot of them keep a low profile.