It would be amazing if Square Enix could give to the free company some time to move out or to buy an house in the new sector, before allowing people to buy them as personnal house.
I personnaly think that an FC deserve more a mansion than a single player, afterall a fc house affect many players, and a personnal house just one or few person. I have the funds to buy a mansion for myself, but I prefer a medium house as a personnal house, but I see a lot of FC who have trouble to get an house because every plots, even the small one, are taken.
I don't remember when Shirogane came out if they gave time to fc first? I was OK in my sector, didn't feel the need to move out (I don,t really like Shirogane) and my FC at that time already had a large one, so it was something I was not really looking at.