I don’t think that’s an illogical concern, but why now?
Why never before? If this was such a great concern, it would have been at other times too.
Why relocate the families? The crews are at sea for months at a time. When they come back to port, they can travel home.
How have they done it in the past? What has changed?
This does happen with the bigger ships. The LHD swapout with Essex a couple years back.
In this case Washington needs new rocks. Something done only once (mid life) and only at Newport News (Virginia). There’s no way around that.