The Rio Olympics were not moved or cancelled due to the WHO recommendation, issued May 28. There was a group of scientists, bioethicists, and public health officials who disagreed, due to the CDC travel recs of avoiding travel to affected countries. Some individual athletes are choosing not to go. Risk for Olympic tourists was estimated on the low end of 1.8 cases/1 mln and the high end of 3.2 cases/100,000 (to give some idea of the risk in Brazil where Zika is rampant). WHO still identifies the risk as low and urges precautions.
I haven't seen a comparable statistic for FL, but I think it's safe to assume that the risk to an avg traveler not in the at-risk population is very, very low (provided adequate precautions are taken) for Orlando. I really don't know why Disney didn't provide a public statement for news articles such as, 'here are the mosquito control steps we take to address Zika, and mosquito repellant is available on property for purchase', given the size of their property and the number of visitors. Acknowledging the concern, saying what steps are taken to address it, and saying how an individual might manage their risk seems like a basic customer service/ no-brainer to me.