Cunard have been planning that cruise for 3 years at least. VV had 6 months to plan a September repositioning. again cruise lines are not airlines.
And the last word here is the VV statement. as you are not going to change my mind. My experience cruising tells me what you think is possible is in fact nearly impossible.
Yet VV came up with a replacement voyage up Africa in the space of a month or so, so it was feasible. And safe.
Add another 6 months on top and they would have more options and could market it better.
Just they _chose_ not to go up Africa. Nothing to do with safety.
As for having 6 months to prepare for that repositioning - instead they had to multiply that even more and come up with a whole bunch of itineraries elsewhere in 6 months. So again, nothing to do with logistics or practicalities. Just a commercial decision.