Yes I agree with your comments on a personal level, but what the cruise companies? Are they going to allow non vaccinated, or non tested passengers or crew on board?I look on the not so pessimistic side.If a vaccine is found that works or if a trial using plaquenil to prevent Covid infection is positive then there is no reason to not cruise just because of Covid.Though those things wont be around for at least a year.
And your comment also confirms what I think may happen, no cruising this year or until there is a vaccine.