I also don't think you can say that
DCL will fill up without any problems by pointing to WDW. Other than masks, distancing, and some reduced experiences, there really isn't much difference at WDW. Even if people didn't go to the parks, they can still enjoy the resorts and the pools. They could go to Disney Springs. There are options there.
COVID restrictions on a cruise ship are likely to be
VERY significant and overbearing on the experience, likely far more restrictive than what you get at WDW. Some of the stuff being talked about here and in other cruise forums like "reservations" just to go on the pool deck or anywhere else on the ship. No shows. No lounges. No shore excursions. Reduced food options. Masks everywhere, even on the open decks. No socializing at all, (which is the prime reason a lot of people like cruising to begin with.) Mandatory testing. Temperature checks multiple times a day. And now we are talking about mandatory vaccinations.
People are going to pay full price for this? Really? I mean people can spend their money however they want....but that's insane. How is this a vacation? I'd rather sit home for a week to be honest with you. There is no way in hell I'd pay thousands of dollars for this. With the way so many people and many government and companies have literally lost their minds over this virus....I will not go cruising again until the pandemic is over
and all COVID restrictions are gone. If that never happens, I'll find other vacation options.