Dorian boasted sustained winds to 185 mph with gusts to 220 mph at landfall over Great Abaco. More like a Category 6-7 hurricane, if there was such a designation. Since Castaway Cay did not encounter the eyewall, the Disney employees were likely spared the strongest winds. Still too close for comfort, as a wobble would have been devastating.
The winds are one problem. But while you hide from winds, you run from water. And there’s really nowhere to run. I hope that bunker has some means to power pumps and has potable water.
As long as there’s due diligence by Disney, informed consent by the employees along with one mother of a paycheck, I don’t have a problem with Disney doing this. Especially if it helps any locals employed get back to work faster. Folks are gonna need those paychecks.
Disney builds in a very professional manner from accounts of other contractors that have worked on their projects.
That being said, design strength is only as good as the individual materials and small details. I have been involved in forensic investigations of building failures and it is sometimes a very small feature that is damaged and other damage builds from there. If the Disney workers were local Bahamians, then it is very likely that the shelter was stronger than their home.