I don't believe that's correct. According to the Orlando Sentinel article:
"Norwegian Cruise Lines Holdings can require proof of vaccines for all passengers and crews, a federal judge ruled Sunday night, granting the cruise line a preliminary injunction that prevents it from being subjected to Florida’s ban on so-called vaccine passports."
The other articles I've seen also say that the injunction only applies to Norwegian - not Disney or anyone else. Even if it didn't, I can't see the other cruise lines, who are tiptoeing carefully to stay safe and within rules, changing their policies based just on an injunction. If it gets settled by a court, then probably. I suspect DeSantis will try to push it to the Supreme Court if they lose, but I personally really can't see it succeeding there.