They can and will recover once testing and quarantine are eliminated.
I think the wide divergence of opinions here, not dissimilar to the smoking debate,
may open the possibility of different cruise lines opting to pursue different Covid policies. In essence, something for everyone.
I will wait to sail until restrictions are gone, at least on some cruise line somewhere in the world, whereas cowmilker wants a highly regulated mask wearing environment.
Why can’t both of us have options that suit our comfort levels, if not immediately but in the reasonable future?