No, it is not a possibility.
Someone losing their balance and falling down doesn’t go over the railing, and it’s impossible for an adult to go under the railing or in between the “slats”
everyone need to stop promoting this narrative that these thing can possibly happen by pure accident; they can NOT; pure and simple.
We used Scoot-Around at Port Canaveral in July. They have a roped off area right at the entrance doors to the terminal, you can't miss it.
We actually liked the set up as I was able to wheel DW up all the ramps rather than have her walk (she's in Chemo and just gets tired easy) the drop off process was just as simple.
If you are a US citizen, and are returning to the same port that you leave from, and you aren't visiting Cuba, Martinique, or Colombia; then there is no 6 month rule for your passport, it only needs to be valid the day you return.
I am sorry but the laws of physics do not support this theory. There is a reason the railings are the height that they are and that they are slightly sloped.
No amount of stumbling is going to create enough inertia to carry a person of average height over a railing 54 inches or so in height. Just not happening
I have no updates, early 2024 is all I have ever heard. I can not imagine there being any upside to Royal opening the beach exclusively to Icon; if the area is ready to serve one ship, they aren't going to leave revenue on the table and not open it to everyone.
So you really aren't that concerned about the environmental aspect if you are willing to give a pass to all diesel burning vessels except for a fraction of a percent because they are for leisure.
"common carrier" trip interruption/cancellation is what you are looking for. Winter weather in Connecticut probably won't be covered under that particular umbrella, you will need to be sure you have weather related coverage.
ALSO be 100% sure your airline tickets as well as your cruise fare are covered in the policy.