What doesn't make sense?

I think your forgetting housing isn't about saving you or anyone money, its about spending your money and being thankful you even have a house at all :P

Also, its possible this move feature is only for Free companies
The moving feature will transfer the personal chambers, company chest, company workshop, and airship voyage status, as well as the chocobo stables.
Since they say this straight after that quote i post above: (from the Q & A)
Q: Is the timing for purchasing plots in Shirogane the same for free companies and individuals?
A: We are currently in the middle of investigating how much of the population owns housing, so this hasn't been decided yet. We will look into this a bit more before making a decision.