Jobs can actually also be seen as an argument FOR Wyoming.
Sure, it'll be harder to get people to move to Wyoming with lousy job prospects, and it'll thus be harder to get the FSP started, but once we do get started, we'll be able to make a real change for the better. Imagine how the people of Wyoming would feel if shortly (few years) after we arrive, job prospects start to increase.
Now compare that to the states that already have a good job prospect. Sure, it'll be easy to get people to move to those states, and we'll be able to get the FSP up and running easily, but, we'll never really be able to make a visible change to the job prospects, and thus we won't make many new members that way.
Of course, if we can get the FSP up and running quicker because of good job prospects in a state, and thus start enlisting new members quicker, it may offset the number of members we would receive due to visible job growth in a state with lousy current job prospects.