We don’t have much help and so we don’t leave ours much, but I think it really is most out of choice.
However, I would not leave them for 6 days to move house (full stop at that!) followed by leaving them for a weekend, whilst trying to settle them in to a new house/area AND miss my child’s first day at his new nursery for anyone / anything.
And yes all those commenting on her post that parents deserve time away, of course they do, but not when your children are going through a major life change! Your children need you to help them through it.