What is the benefit of moving a range of elements in a vector vs. copying?

Consider the following snippet (saw something analogous to this in a large simulation code)

std::vector<int> v1{1,2,3,4,5,6,7};
std::vector<int> v2;

std::move(v1.begin() + 2, v1.end(), back_inserter(v2));

Here, I am moving a range of elements from v1 to v2, but is there any particular advantage to doing this vs. copying? I do not actually see what the advantage of the move here would be since it's operating on a range of ints. In fact, I do not believe any move is occurring since we are dealing with POD types.

If we instead wanted to transfer the entire v1 to v2, then we could do:

v2 = std::move(v1);

The cast here would allow v2 to now own the pointer to the contiguous range of memory previously owned by v1, thus avoiding a copy.

But in the former move of a range of elements, I do not see the usefulness.